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EXAMPLE 8.3
Example 8.3 Usha swims in a 90 m long pool. She covers 180 m in one minute by swimming from one end to the other and back along the same straight path. Find the average speed and average Velocity of Usha. Given Length of the pool = 90 m Time taken = 1 minute = 60 secondsUsha tra
ROHAN'S MOTHER IS 26 YEARS OLDER THAN HIM. THE PRODUCT OF Ex 4.1 ,2 Represent the following situations in the form of quadratic equations : (iii) Rohan s mother is 26 years older than him. The product of their ages (in years) 3 years from now will be 360. We would like to find Rohan s present age. Let Rohan's age = x Rohan smother age = x + 26
EX 1.1, 6 - RITA GOES 20 KM TOWARDS EAST FROM A POINT A TO Ex 1.1, 6 Rita goes 20 km towards east from a point A to the point B. From B, she moves 30 km towards west along the same road. If the distance towards east is represented by a positive integer then, how will you represent the distance travelled towards west? By which integer will you represent her EX 1.6, 8 - IN A COMMITTEE, 50 SPEAK FRENCH, 20 SPANISH Ex 1.6, 8 In a committee, 50 people speak French, 20 speak Spanish and 10 speak both Spanish and French. How many speak at least one of these two languages? Let F be the set of people in the committee who speak French, and S be the set of people in the committee who speak SpanishNumber of
NCERT Q14 - COMPARE THE POWER USED IN THE 2 OHM RESISTOR NCERT Question 14 Compare the power used in the 2 Ω resistor in each of the following circuits: (i) a 6 V battery in series with 1 Ω and 2 Ω resistors, and Given Potential Difference = V = 6 V R1 = 1 Ω R2 = 2 Ω We know that in series combination, the current through eachindividual
EXAMPLE 27 - THERE ARE 200 INDIVIDUALS WITH A SKIN Example 27 There are 200 individuals with a skin disorder, 120 had been exposed to the chemical C1, 50 to chemical C2, and 30 to both the chemicals C1 and C2. Find the number of individuals exposed to (i) Chemical C1 but not chemical C2 Number of people exposed to chemicalC1 but no
EXAMPLE 15 - ARJUN IS TWICE AS OLD AS SHRIYA. FIVE YEARS Example 15 Arjun is twice as old as Shriya. Five years ago his age was three times Shriya s age. Find their present ages.Let Shriya s Present age be x years Arjun s present age = 2x years Five years ago, Shriya s age = (x 5) years Arjun s age = (2x 5) years Given, Five ye IN AN OFFICE THREE EMPLOYEES VINAY, SONIA AND IQBAL Transcript. Question 18 In an office three employees Vinay, Sonia and Iqbal process incoming copies of a certain form. Vinay process 50% ofthe forms.
TEACHOO - LEARN MATHS, SCIENCE, ENGLISH, GST, TALLYENGLISHTANGSTTAXNCERT SOLUTIONSEXCELACCOUNTS Learn Maths, English, Science and Tax Return Filing at teachoo. Learn Filing of Different Taxes like GST, TDS, Income Tax, get NCERT Solutions Maths and Science for all questions from Class 6 to 12 free. EX 2.4, 7 - HASAN BUYS TWO KINDS OF CLOTH MATERIALS FOR Ex 2.4, 7 Hasan buys two kinds of cloth materials for school uniforms, shirt material that costs him Rs 50 per metre and trouser material that costs him Rs 90 per metre. For every 2 meters of the trouser material he buys 3 metres of the shirt material. He sells the materials at 12% and 10% profit reEXAMPLE 8.3
Example 8.3 Usha swims in a 90 m long pool. She covers 180 m in one minute by swimming from one end to the other and back along the same straight path. Find the average speed and average Velocity of Usha. Given Length of the pool = 90 m Time taken = 1 minute = 60 secondsUsha tra
ROHAN'S MOTHER IS 26 YEARS OLDER THAN HIM. THE PRODUCT OF Ex 4.1 ,2 Represent the following situations in the form of quadratic equations : (iii) Rohan s mother is 26 years older than him. The product of their ages (in years) 3 years from now will be 360. We would like to find Rohan s present age. Let Rohan's age = x Rohan smother age = x + 26
EX 1.1, 6 - RITA GOES 20 KM TOWARDS EAST FROM A POINT A TO Ex 1.1, 6 Rita goes 20 km towards east from a point A to the point B. From B, she moves 30 km towards west along the same road. If the distance towards east is represented by a positive integer then, how will you represent the distance travelled towards west? By which integer will you represent her EX 1.6, 8 - IN A COMMITTEE, 50 SPEAK FRENCH, 20 SPANISH Ex 1.6, 8 In a committee, 50 people speak French, 20 speak Spanish and 10 speak both Spanish and French. How many speak at least one of these two languages? Let F be the set of people in the committee who speak French, and S be the set of people in the committee who speak SpanishNumber of
NCERT Q14 - COMPARE THE POWER USED IN THE 2 OHM RESISTOR NCERT Question 14 Compare the power used in the 2 Ω resistor in each of the following circuits: (i) a 6 V battery in series with 1 Ω and 2 Ω resistors, and Given Potential Difference = V = 6 V R1 = 1 Ω R2 = 2 Ω We know that in series combination, the current through eachindividual
EXAMPLE 27 - THERE ARE 200 INDIVIDUALS WITH A SKIN Example 27 There are 200 individuals with a skin disorder, 120 had been exposed to the chemical C1, 50 to chemical C2, and 30 to both the chemicals C1 and C2. Find the number of individuals exposed to (i) Chemical C1 but not chemical C2 Number of people exposed to chemicalC1 but no
EXAMPLE 15 - ARJUN IS TWICE AS OLD AS SHRIYA. FIVE YEARS Example 15 Arjun is twice as old as Shriya. Five years ago his age was three times Shriya s age. Find their present ages.Let Shriya s Present age be x years Arjun s present age = 2x years Five years ago, Shriya s age = (x 5) years Arjun s age = (2x 5) years Given, Five ye IN AN OFFICE THREE EMPLOYEES VINAY, SONIA AND IQBAL Transcript. Question 18 In an office three employees Vinay, Sonia and Iqbal process incoming copies of a certain form. Vinay process 50% ofthe forms.
LINE OF SYMMETRY
Line of Symmetry of Regular Polygon A regular polygon has all sides equal Equilateral triangle has 3 lines of symmetry Square has 4 lines of symmetry Regular pentagonLINE OF SYMMETRY
Line of Symmetry - Rhombus Rhombus is a parallelogram with all 4 sides equal But if we make line of symmetry as following: Then, So, rhombus has 2 lines of symmetryLINE OF SYMMETRY
Line of SymmetryIn our figure If we cut from the center, the figure is symmetrical. But if we cut from somewhere else, like Then figure is not symmetrical This line from where figure is symmetrical is called line symmetry For other figures, Our line of symmetry is We can aLINE OF SYMMETRY
Line of Symmetry - Plus sign The plus sign has 4 lines of symmetry FIGURES WITH MORE THAN ONE LINES OF SYMMETRY Figures with more than 1 line of symmetryWe previously discussHere, we have 1 line of symmetryThis,Is not a line symmetryBut, for some figures,We can have more than 1 line of symmetryLike RectangleBut, if we make line of symmetry as its diagonal FIND THE NUMBER OF LINES OF SYMMETY FOR EACH OF THE Ex 13.2, 1 Find the number of lines of symmetry for each of the following shapes : (a) Because this is a combination of square,Line of symmetries will beHence, Number of Lines of Symmetry is 4Ex 13.2, 1 Find the number of lines of symmetry for each of the following shapes EX 1.6, 8 - IN A COMMITTEE, 50 SPEAK FRENCH, 20 SPANISH Ex 1.6, 8 In a committee, 50 people speak French, 20 speak Spanish and 10 speak both Spanish and French. How many speak at least one of these two languages? Let F be the set of people in the committee who speak French, and S be the set of people in EXAMPLE 27 - THERE ARE 200 INDIVIDUALS WITH A SKIN Example 27 There are 200 individuals with a skin disorder, 120 had been exposed to the chemical C1, 50 to chemical C2, and 30 to both the chemicals C1 and C2. Find the number of individuals exposed to (i) Chemical C1 but not chemical C2 Number of people exposed to chemicalC1 but no
WHAT IS SYMMETRY?
SymmetrySymmetry means same Suppose we have a figure like If we cut it from the middle, We see that left side & right side is the same. So, we can say that the figure is symmetric If we cut it from the middle, We see that left side & right side is the same. WHAT ARE FLUIDS? HOW DO THEY FLOW? Substances which has no fixed shape and is able to flow easily is called fluidExampleLiquids and Gasesare also called FluidsThis is because they can flowHowever, solids cannot flow, hence they are not afluid
TEACHOO - LEARN MATHS, SCIENCE, ENGLISH, GST, TALLYENGLISHTANGSTTAXNCERT SOLUTIONSEXCELACCOUNTS Learn Maths, English, Science and Tax Return Filing at teachoo. Learn Filing of Different Taxes like GST, TDS, Income Tax, get NCERT Solutions Maths and Science for all questions from Class 6 to 12 free. EX 2.4, 7 - HASAN BUYS TWO KINDS OF CLOTH MATERIALS FOR Ex 2.4, 7 Hasan buys two kinds of cloth materials for school uniforms, shirt material that costs him Rs 50 per metre and trouser material that costs him Rs 90 per metre. For every 2 meters of the trouser material he buys 3 metres of the shirt material. He sells the materials at 12% and 10% profit reEXAMPLE 8.3
Example 8.3 Usha swims in a 90 m long pool. She covers 180 m in one minute by swimming from one end to the other and back along the same straight path. Find the average speed and average Velocity of Usha. Given Length of the pool = 90 m Time taken = 1 minute = 60 secondsUsha tra
ROHAN'S MOTHER IS 26 YEARS OLDER THAN HIM. THE PRODUCT OF Ex 4.1 ,2 Represent the following situations in the form of quadratic equations : (iii) Rohan s mother is 26 years older than him. The product of their ages (in years) 3 years from now will be 360. We would like to find Rohan s present age. Let Rohan's age = x Rohan smother age = x + 26
EX 1.1, 6 - RITA GOES 20 KM TOWARDS EAST FROM A POINT A TO Ex 1.1, 6 Rita goes 20 km towards east from a point A to the point B. From B, she moves 30 km towards west along the same road. If the distance towards east is represented by a positive integer then, how will you represent the distance travelled towards west? By which integer will you represent her EX 1.6, 8 - IN A COMMITTEE, 50 SPEAK FRENCH, 20 SPANISH Ex 1.6, 8 In a committee, 50 people speak French, 20 speak Spanish and 10 speak both Spanish and French. How many speak at least one of these two languages? Let F be the set of people in the committee who speak French, and S be the set of people in the committee who speak SpanishNumber of
NCERT Q14 - COMPARE THE POWER USED IN THE 2 OHM RESISTOR NCERT Question 14 Compare the power used in the 2 Ω resistor in each of the following circuits: (i) a 6 V battery in series with 1 Ω and 2 Ω resistors, and Given Potential Difference = V = 6 V R1 = 1 Ω R2 = 2 Ω We know that in series combination, the current through eachindividual
EXAMPLE 27 - THERE ARE 200 INDIVIDUALS WITH A SKIN Example 27 There are 200 individuals with a skin disorder, 120 had been exposed to the chemical C1, 50 to chemical C2, and 30 to both the chemicals C1 and C2. Find the number of individuals exposed to (i) Chemical C1 but not chemical C2 Number of people exposed to chemicalC1 but no
EXAMPLE 15 - ARJUN IS TWICE AS OLD AS SHRIYA. FIVE YEARS Example 15 Arjun is twice as old as Shriya. Five years ago his age was three times Shriya s age. Find their present ages.Let Shriya s Present age be x years Arjun s present age = 2x years Five years ago, Shriya s age = (x 5) years Arjun s age = (2x 5) years Given, Five ye IN AN OFFICE THREE EMPLOYEES VINAY, SONIA AND IQBAL Transcript. Question 18 In an office three employees Vinay, Sonia and Iqbal process incoming copies of a certain form. Vinay process 50% ofthe forms.
TEACHOO - LEARN MATHS, SCIENCE, ENGLISH, GST, TALLYENGLISHTANGSTTAXNCERT SOLUTIONSEXCELACCOUNTS Learn Maths, English, Science and Tax Return Filing at teachoo. Learn Filing of Different Taxes like GST, TDS, Income Tax, get NCERT Solutions Maths and Science for all questions from Class 6 to 12 free. EX 2.4, 7 - HASAN BUYS TWO KINDS OF CLOTH MATERIALS FOR Ex 2.4, 7 Hasan buys two kinds of cloth materials for school uniforms, shirt material that costs him Rs 50 per metre and trouser material that costs him Rs 90 per metre. For every 2 meters of the trouser material he buys 3 metres of the shirt material. He sells the materials at 12% and 10% profit reEXAMPLE 8.3
Example 8.3 Usha swims in a 90 m long pool. She covers 180 m in one minute by swimming from one end to the other and back along the same straight path. Find the average speed and average Velocity of Usha. Given Length of the pool = 90 m Time taken = 1 minute = 60 secondsUsha tra
ROHAN'S MOTHER IS 26 YEARS OLDER THAN HIM. THE PRODUCT OF Ex 4.1 ,2 Represent the following situations in the form of quadratic equations : (iii) Rohan s mother is 26 years older than him. The product of their ages (in years) 3 years from now will be 360. We would like to find Rohan s present age. Let Rohan's age = x Rohan smother age = x + 26
EX 1.1, 6 - RITA GOES 20 KM TOWARDS EAST FROM A POINT A TO Ex 1.1, 6 Rita goes 20 km towards east from a point A to the point B. From B, she moves 30 km towards west along the same road. If the distance towards east is represented by a positive integer then, how will you represent the distance travelled towards west? By which integer will you represent her EX 1.6, 8 - IN A COMMITTEE, 50 SPEAK FRENCH, 20 SPANISH Ex 1.6, 8 In a committee, 50 people speak French, 20 speak Spanish and 10 speak both Spanish and French. How many speak at least one of these two languages? Let F be the set of people in the committee who speak French, and S be the set of people in the committee who speak SpanishNumber of
NCERT Q14 - COMPARE THE POWER USED IN THE 2 OHM RESISTOR NCERT Question 14 Compare the power used in the 2 Ω resistor in each of the following circuits: (i) a 6 V battery in series with 1 Ω and 2 Ω resistors, and Given Potential Difference = V = 6 V R1 = 1 Ω R2 = 2 Ω We know that in series combination, the current through eachindividual
EXAMPLE 27 - THERE ARE 200 INDIVIDUALS WITH A SKIN Example 27 There are 200 individuals with a skin disorder, 120 had been exposed to the chemical C1, 50 to chemical C2, and 30 to both the chemicals C1 and C2. Find the number of individuals exposed to (i) Chemical C1 but not chemical C2 Number of people exposed to chemicalC1 but no
EXAMPLE 15 - ARJUN IS TWICE AS OLD AS SHRIYA. FIVE YEARS Example 15 Arjun is twice as old as Shriya. Five years ago his age was three times Shriya s age. Find their present ages.Let Shriya s Present age be x years Arjun s present age = 2x years Five years ago, Shriya s age = (x 5) years Arjun s age = (2x 5) years Given, Five ye IN AN OFFICE THREE EMPLOYEES VINAY, SONIA AND IQBAL Transcript. Question 18 In an office three employees Vinay, Sonia and Iqbal process incoming copies of a certain form. Vinay process 50% ofthe forms.
LINE OF SYMMETRY
Line of Symmetry of Regular Polygon A regular polygon has all sides equal Equilateral triangle has 3 lines of symmetry Square has 4 lines of symmetry Regular pentagonLINE OF SYMMETRY
Line of Symmetry - Rhombus Rhombus is a parallelogram with all 4 sides equal But if we make line of symmetry as following: Then, So, rhombus has 2 lines of symmetryLINE OF SYMMETRY
Line of SymmetryIn our figure If we cut from the center, the figure is symmetrical. But if we cut from somewhere else, like Then figure is not symmetrical This line from where figure is symmetrical is called line symmetry For other figures, Our line of symmetry is We can aLINE OF SYMMETRY
Line of Symmetry - Plus sign The plus sign has 4 lines of symmetry FIGURES WITH MORE THAN ONE LINES OF SYMMETRY Figures with more than 1 line of symmetryWe previously discussHere, we have 1 line of symmetryThis,Is not a line symmetryBut, for some figures,We can have more than 1 line of symmetryLike RectangleBut, if we make line of symmetry as its diagonal FIND THE NUMBER OF LINES OF SYMMETY FOR EACH OF THE Ex 13.2, 1 Find the number of lines of symmetry for each of the following shapes : (a) Because this is a combination of square,Line of symmetries will beHence, Number of Lines of Symmetry is 4Ex 13.2, 1 Find the number of lines of symmetry for each of the following shapes EX 1.6, 8 - IN A COMMITTEE, 50 SPEAK FRENCH, 20 SPANISH Ex 1.6, 8 In a committee, 50 people speak French, 20 speak Spanish and 10 speak both Spanish and French. How many speak at least one of these two languages? Let F be the set of people in the committee who speak French, and S be the set of people in EXAMPLE 27 - THERE ARE 200 INDIVIDUALS WITH A SKIN Example 27 There are 200 individuals with a skin disorder, 120 had been exposed to the chemical C1, 50 to chemical C2, and 30 to both the chemicals C1 and C2. Find the number of individuals exposed to (i) Chemical C1 but not chemical C2 Number of people exposed to chemicalC1 but no
WHAT IS SYMMETRY?
SymmetrySymmetry means same Suppose we have a figure like If we cut it from the middle, We see that left side & right side is the same. So, we can say that the figure is symmetric If we cut it from the middle, We see that left side & right side is the same. WHAT ARE FLUIDS? HOW DO THEY FLOW? Substances which has no fixed shape and is able to flow easily is called fluidExampleLiquids and Gasesare also called FluidsThis is because they can flowHowever, solids cannot flow, hence they are not afluid
TEACHOO - LEARN MATHS, SCIENCE, ENGLISH, GST, TALLYENGLISHTANGSTTAXNCERT SOLUTIONSEXCELACCOUNTS Learn Maths, English, Science and Tax Return Filing at teachoo. Learn Filing of Different Taxes like GST, TDS, Income Tax, get NCERT Solutions Maths and Science for all questions from Class 6 to 12 free. NCERT SOLUTIONS FOR CLASS 10 MATHS NCERT Solutions of all chapters of Class 10 Maths are provided with videos. All exercise questions, examples and optional exercise questions have been solved with video of each and every question.Topics of each chapter includeChapter 1 Real Numbers- Euclid's Division Lemma, Finding HCF using Euclid' ROHAN'S MOTHER IS 26 YEARS OLDER THAN HIM. THE PRODUCT OF Ex 4.1 ,2 Represent the following situations in the form of quadratic equations : (iii) Rohan s mother is 26 years older than him. The product of their ages (in years) 3 years from now will be 360. We would like to find Rohan s present age. Let Rohan's age = x Rohan smother age = x + 26
EX 6.1, 5 - A STONE IS DROPPED INTO A QUIET LAKE AND WAVES Ex 6.1, 5 A stone is dropped into a quiet lake and waves move in circles at the speed of 5 cm/s. At the instant when the radius of the circular wave is 8 cm, how fast is the enclosed area increasing?Let r be the radius of circle & A be the Area of circle Given that When stone is dropped intoEXAMPLE 8.3
Example 8.3 Usha swims in a 90 m long pool. She covers 180 m in one minute by swimming from one end to the other and back along the same straight path. Find the average speed and average Velocity of Usha. Given Length of the pool = 90 m Time taken = 1 minute = 60 secondsUsha tra
EX 3.6, 2 (III)
Ex 3.6, 2 Formulate the following problems as a pair of equations, and hence find their solutions: (iii) Roohi travels 300 km to her home partly by train and partly by bus. She takes 4 hours if she travels 60 km by train and the remaining by bus. If she travels 100 km by trainand the remaining b
EX 2.4, 7 - HASAN BUYS TWO KINDS OF CLOTH MATERIALS FOR Ex 2.4, 7 Hasan buys two kinds of cloth materials for school uniforms, shirt material that costs him Rs 50 per metre and trouser material that costs him Rs 90 per metre. For every 2 meters of the trouser material he buys 3 metres of the shirt material. He sells the materials at 12% and 10% profit re EXAMPLE 15 - ARJUN IS TWICE AS OLD AS SHRIYA. FIVE YEARS Example 15 Arjun is twice as old as Shriya. Five years ago his age was three times Shriya s age. Find their present ages.Let Shriya s Present age be x years Arjun s present age = 2x years Five years ago, Shriya s age = (x 5) years Arjun s age = (2x 5) years Given, Five ye NCERT Q14 - COMPARE THE POWER USED IN THE 2 OHM RESISTOR NCERT Question 14 Compare the power used in the 2 Ω resistor in each of the following circuits: (i) a 6 V battery in series with 1 Ω and 2 Ω resistors, and Given Potential Difference = V = 6 V R1 = 1 Ω R2 = 2 Ω We know that in series combination, the current through eachindividual
IN AN OFFICE THREE EMPLOYEES VINAY, SONIA AND IQBAL Transcript. Question 18 In an office three employees Vinay, Sonia and Iqbal process incoming copies of a certain form. Vinay process 50% ofthe forms.
TEACHOO - LEARN MATHS, SCIENCE, ENGLISH, GST, TALLYENGLISHTANGSTTAXNCERT SOLUTIONSEXCELACCOUNTS Learn Maths, English, Science and Tax Return Filing at teachoo. Learn Filing of Different Taxes like GST, TDS, Income Tax, get NCERT Solutions Maths and Science for all questions from Class 6 to 12 free. NCERT SOLUTIONS FOR CLASS 10 MATHS NCERT Solutions of all chapters of Class 10 Maths are provided with videos. All exercise questions, examples and optional exercise questions have been solved with video of each and every question.Topics of each chapter includeChapter 1 Real Numbers- Euclid's Division Lemma, Finding HCF using Euclid' ROHAN'S MOTHER IS 26 YEARS OLDER THAN HIM. THE PRODUCT OF Ex 4.1 ,2 Represent the following situations in the form of quadratic equations : (iii) Rohan s mother is 26 years older than him. The product of their ages (in years) 3 years from now will be 360. We would like to find Rohan s present age. Let Rohan's age = x Rohan smother age = x + 26
EX 6.1, 5 - A STONE IS DROPPED INTO A QUIET LAKE AND WAVES Ex 6.1, 5 A stone is dropped into a quiet lake and waves move in circles at the speed of 5 cm/s. At the instant when the radius of the circular wave is 8 cm, how fast is the enclosed area increasing?Let r be the radius of circle & A be the Area of circle Given that When stone is dropped intoEXAMPLE 8.3
Example 8.3 Usha swims in a 90 m long pool. She covers 180 m in one minute by swimming from one end to the other and back along the same straight path. Find the average speed and average Velocity of Usha. Given Length of the pool = 90 m Time taken = 1 minute = 60 secondsUsha tra
EX 3.6, 2 (III)
Ex 3.6, 2 Formulate the following problems as a pair of equations, and hence find their solutions: (iii) Roohi travels 300 km to her home partly by train and partly by bus. She takes 4 hours if she travels 60 km by train and the remaining by bus. If she travels 100 km by trainand the remaining b
EX 2.4, 7 - HASAN BUYS TWO KINDS OF CLOTH MATERIALS FOR Ex 2.4, 7 Hasan buys two kinds of cloth materials for school uniforms, shirt material that costs him Rs 50 per metre and trouser material that costs him Rs 90 per metre. For every 2 meters of the trouser material he buys 3 metres of the shirt material. He sells the materials at 12% and 10% profit re EXAMPLE 15 - ARJUN IS TWICE AS OLD AS SHRIYA. FIVE YEARS Example 15 Arjun is twice as old as Shriya. Five years ago his age was three times Shriya s age. Find their present ages.Let Shriya s Present age be x years Arjun s present age = 2x years Five years ago, Shriya s age = (x 5) years Arjun s age = (2x 5) years Given, Five ye NCERT Q14 - COMPARE THE POWER USED IN THE 2 OHM RESISTOR NCERT Question 14 Compare the power used in the 2 Ω resistor in each of the following circuits: (i) a 6 V battery in series with 1 Ω and 2 Ω resistors, and Given Potential Difference = V = 6 V R1 = 1 Ω R2 = 2 Ω We know that in series combination, the current through eachindividual
IN AN OFFICE THREE EMPLOYEES VINAY, SONIA AND IQBAL Transcript. Question 18 In an office three employees Vinay, Sonia and Iqbal process incoming copies of a certain form. Vinay process 50% ofthe forms.
NCERT SOLUTIONS FOR CLASS 10 MATHS NCERT Solutions of all chapters of Class 10 Maths are provided with videos. All exercise questions, examples and optional exercise questions have been solved with video of each and every question.Topics of each chapter includeChapter 1 Real Numbers- Euclid's Division Lemma, Finding HCF using Euclid' WHAT ARE FLUIDS? HOW DO THEY FLOW? Substances which has no fixed shape and is able to flow easily is called fluidExampleLiquids and Gasesare also called FluidsThis is because they can flowHowever, solids cannot flow, hence they are not afluid
EX 3.4, 2 (IV)
Ex 3.4, 2 Form the pair of linear equations in the following problems, and find their solutions (if they exist) by the elimination method : (iv) Meena went to a bank to withdraw Rs 2000. She asked the cashier to give her Rs 50 and Rs 100 notes only. Meena got 25 notes in all.Find how many note
EXAMPLE 10.1
Example 10.1 A convex mirror used for rear-view on an automobile has a radius ofcurvature of 3.00 m. If a bus is located at 5.00 m from this mirror,find the position EX 1.4, 7 - AN ELEVATOR DESCENDS INTO A MINE SHAFT AT RATE Ex 1.4, 7 An elevator descends into a mine shaft at the rate of 6 m/min. If the descent starts from 10 m above the ground level, how long will it take to reach 350 m. Total distance elevator has to travel = Initial position final position = 10 ( 350) = 10 + 350EXAMPLE 12.7
Example 12.7 An electric lamp, whose resistance is 20 Ω, and a conductor of 4 Ω resistance are connected to a 6 V battery (Fig. 12.9). Calculate (a) the total resistance of the circuit, (b) the current through the circuit, and (c) the potential difference across the electric lamp and conductor.Q2 PAGE 100
Transcript. Page 100 Q2 A farmer moves along the boundary of a square field of side 10 m in 40 s. What will be the magnitude of displacement of the farmer at the end of 2 minutes 20 seconds from his initial position? Length of square field = 10 m Time taken to move along square field = 40 s Total time the farmer walked on the square field =2
NCERT Q11 - SHOW HOW YOU WOULD CONNECT THREE RESISTORS NCERT Question 11 Show how you would connect three resistors, each of resistance 6 Ω, so that the combination has a resistance of (i) 9 Ω, (ii) 4 Ω. This can be done in 4 ways All 3 in series All 3 in parallel 2 in parallel, 1 in series 2 in series, 1 in parallel In series combination, equi FIND THE AREA OF THE ELLIPSE X^2 + 9Y^2 = 36 USING Question 34 (Choice 2) Find the area of the ellipse 𝑥2 + 9𝑦2 = 36 using integration Equation of Ellipse is :- 𝑥2 + 9𝑦2 = 36 𝑥^2/36+(9𝑦^2)/36=1 𝑥 NCERT Q15 - TWO LAMPS, ONE RATED 100 W AT 220 V, AND THE NCERT Question 15 Two lamps, one rated 100 W at 220 V, and the other 60 W at 220 V, are connected in parallel to electric mains supply. What current is drawn from the line if the supply voltage is 220 V? Given Potential difference = V = 220 V Power of lamp 1 = P1 = 100 W Power of lamp 2 = P2 = 6 TEACHOO - LEARN MATHS, SCIENCE, ENGLISH, GST, TALLYENGLISHTANGSTTAXNCERT SOLUTIONSEXCELACCOUNTS Learn Maths, English, Science and Tax Return Filing at teachoo. Learn Filing of Different Taxes like GST, TDS, Income Tax, get NCERT Solutions Maths and Science for all questions from Class 6 to 12 free. EX 2.4, 7 - HASAN BUYS TWO KINDS OF CLOTH MATERIALS FOR Ex 2.4, 7 Hasan buys two kinds of cloth materials for school uniforms, shirt material that costs him Rs 50 per metre and trouser material that costs him Rs 90 per metre. For every 2 meters of the trouser material he buys 3 metres of the shirt material. He sells the materials at 12% and 10% profit re EX 2.4, 6 - THERE IS A NARROW RECTANGULAR PLOT, RESERVED Ex 2.4, 6 There is a narrow rectangular plot, reserved for a school, in Mahuli village. The length and breadth of the plot are in the ratio 11:4. At the rate Rs 100 per metre it will cost the village panchayat Rs 75000 to fence the plot. What are the dimensions of the plot?Given,Length & breadth o
EXAMPLE 8.3
Example 8.3 Usha swims in a 90 m long pool. She covers 180 m in one minute by swimming from one end to the other and back along the same straight path. Find the average speed and average Velocity of Usha. Given Length of the pool = 90 m Time taken = 1 minute = 60 secondsUsha tra
ROHAN'S MOTHER IS 26 YEARS OLDER THAN HIM. THE PRODUCT OF Ex 4.1 ,2 Represent the following situations in the form of quadratic equations : (iii) Rohan s mother is 26 years older than him. The product of their ages (in years) 3 years from now will be 360. We would like to find Rohan s present age. Let Rohan's age = x Rohan smother age = x + 26
EX 1.6, 8 - IN A COMMITTEE, 50 SPEAK FRENCH, 20 SPANISH Ex 1.6, 8 In a committee, 50 people speak French, 20 speak Spanish and 10 speak both Spanish and French. How many speak at least one of these two languages? Let F be the set of people in the committee who speak French, and S be the set of people in the committee who speak SpanishNumber of
EXAMPLE 15 - ARJUN IS TWICE AS OLD AS SHRIYA. FIVE YEARS Example 15 Arjun is twice as old as Shriya. Five years ago his age was three times Shriya s age. Find their present ages.Let Shriya s Present age be x years Arjun s present age = 2x years Five years ago, Shriya s age = (x 5) years Arjun s age = (2x 5) years Given, Five ye NCERT Q14 - COMPARE THE POWER USED IN THE 2 OHM RESISTOR NCERT Question 14 Compare the power used in the 2 Ω resistor in each of the following circuits: (i) a 6 V battery in series with 1 Ω and 2 Ω resistors, and Given Potential Difference = V = 6 V R1 = 1 Ω R2 = 2 Ω We know that in series combination, the current through eachindividual
THE PROBABILITY THAT IT WILL RAIN ON ANY PARTICULAR DAY IS Question 16 The probability that it will rain on any particular day is 50%. Find the probability that it rains only on first 4 days of the week. Given P(rains) = 50% = 1/2 P(not rains) = 1 − 1/2 = 1/2 Now, P(it rains first 4 days in week) = P(rains 1st day) × P(rains 2ndday) × P(rains
IN AN OFFICE THREE EMPLOYEES VINAY, SONIA AND IQBAL Transcript. Question 18 In an office three employees Vinay, Sonia and Iqbal process incoming copies of a certain form. Vinay process 50% ofthe forms.
TEACHOO - LEARN MATHS, SCIENCE, ENGLISH, GST, TALLYENGLISHTANGSTTAXNCERT SOLUTIONSEXCELACCOUNTS Learn Maths, English, Science and Tax Return Filing at teachoo. Learn Filing of Different Taxes like GST, TDS, Income Tax, get NCERT Solutions Maths and Science for all questions from Class 6 to 12 free. EX 2.4, 7 - HASAN BUYS TWO KINDS OF CLOTH MATERIALS FOR Ex 2.4, 7 Hasan buys two kinds of cloth materials for school uniforms, shirt material that costs him Rs 50 per metre and trouser material that costs him Rs 90 per metre. For every 2 meters of the trouser material he buys 3 metres of the shirt material. He sells the materials at 12% and 10% profit re EX 2.4, 6 - THERE IS A NARROW RECTANGULAR PLOT, RESERVED Ex 2.4, 6 There is a narrow rectangular plot, reserved for a school, in Mahuli village. The length and breadth of the plot are in the ratio 11:4. At the rate Rs 100 per metre it will cost the village panchayat Rs 75000 to fence the plot. What are the dimensions of the plot?Given,Length & breadth o
EXAMPLE 8.3
Example 8.3 Usha swims in a 90 m long pool. She covers 180 m in one minute by swimming from one end to the other and back along the same straight path. Find the average speed and average Velocity of Usha. Given Length of the pool = 90 m Time taken = 1 minute = 60 secondsUsha tra
ROHAN'S MOTHER IS 26 YEARS OLDER THAN HIM. THE PRODUCT OF Ex 4.1 ,2 Represent the following situations in the form of quadratic equations : (iii) Rohan s mother is 26 years older than him. The product of their ages (in years) 3 years from now will be 360. We would like to find Rohan s present age. Let Rohan's age = x Rohan smother age = x + 26
EX 1.6, 8 - IN A COMMITTEE, 50 SPEAK FRENCH, 20 SPANISH Ex 1.6, 8 In a committee, 50 people speak French, 20 speak Spanish and 10 speak both Spanish and French. How many speak at least one of these two languages? Let F be the set of people in the committee who speak French, and S be the set of people in the committee who speak SpanishNumber of
EXAMPLE 15 - ARJUN IS TWICE AS OLD AS SHRIYA. FIVE YEARS Example 15 Arjun is twice as old as Shriya. Five years ago his age was three times Shriya s age. Find their present ages.Let Shriya s Present age be x years Arjun s present age = 2x years Five years ago, Shriya s age = (x 5) years Arjun s age = (2x 5) years Given, Five ye NCERT Q14 - COMPARE THE POWER USED IN THE 2 OHM RESISTOR NCERT Question 14 Compare the power used in the 2 Ω resistor in each of the following circuits: (i) a 6 V battery in series with 1 Ω and 2 Ω resistors, and Given Potential Difference = V = 6 V R1 = 1 Ω R2 = 2 Ω We know that in series combination, the current through eachindividual
THE PROBABILITY THAT IT WILL RAIN ON ANY PARTICULAR DAY IS Question 16 The probability that it will rain on any particular day is 50%. Find the probability that it rains only on first 4 days of the week. Given P(rains) = 50% = 1/2 P(not rains) = 1 − 1/2 = 1/2 Now, P(it rains first 4 days in week) = P(rains 1st day) × P(rains 2ndday) × P(rains
IN AN OFFICE THREE EMPLOYEES VINAY, SONIA AND IQBAL Transcript. Question 18 In an office three employees Vinay, Sonia and Iqbal process incoming copies of a certain form. Vinay process 50% ofthe forms.
WHAT ARE FLUIDS? HOW DO THEY FLOW? Substances which has no fixed shape and is able to flow easily is called fluidExampleLiquids and Gasesare also called FluidsThis is because they can flowHowever, solids cannot flow, hence they are not afluid
EXAMPLE 27 - THERE ARE 200 INDIVIDUALS WITH A SKIN Example 27 There are 200 individuals with a skin disorder, 120 had been exposed to the chemical C1, 50 to chemical C2, and 30 to both the chemicals C1 and C2. Find the number of individuals exposed to (i) Chemical C1 but not chemical C2 Number of people exposed to chemicalC1 but no
STEP 1 BASIC DATA ENTRY AND SAVING BASIC Excel - teachoo.com Make a folder Called Training Make Some subfolders like Excel,Tally,GST,TDS Open Excel Folder. Make an Excel file called Basic Excel Open Excel File and Make the following indifferent sheets
GST PAYABLE CREDIT INTRO What is output GST? Gst On Sales Is Called Output Gst What is Input GST? Gst On Purchase Is Called Input Gst What is GST Payable? GST Payable is Output-Input Difference between GST Payable and GST Credit GST PAYABLE GST Credit If output is more than Input, PASS THE FOLLOWING ENTRIES IN TALLY We open excel sheet and write some journal entries in excel Step 3 We write Type of Accounting Voucher in Excel for these entries ACTIVITY TO SHOW GASES CAN BE COMPRESSED BUT SOLIDS AND We take 3 syringes A, B, and C We fill them with Salt, Water and Air respectively We close the nozzle of all syringes by inserting them in INVOICE - TDS TRAINING DEMO - TEACHOO.COM Who is deductor and deductee in following bill Deductor RK Electrical Works Deductee CA MANINDER SINGH AND ASSOCIATES TAX INVOICE CA MANINDER SINGH AND ASSOCIATES 253 B 1/12 APSARA ARCADE PUSA ROAD,NEW DELHI-110005 GSTIN No 07APAFD8365H1Z9 Pan No. APAFD8365Q2 CALCULATE TAX
Hindi VideoEnglish Video. Payroll Training Demo. Q1 Standard Deduction Q2 Calculate Tax - Old Rate You are here Q3 Calculating Rebate & TDSOld
Q3 CALCULATING REBATE & TDS OLD Hindi VideoEnglish Video. Payroll Training Demo. Q1 Standard Deduction Q2 Calculate Tax - Old Rate ACTIVITY TO SHOW PARTICLES OF LIQUIDS HAVE FIXED SHAPE BUT We take different types of tumbler likeBeakerGlass TumblerConical TumblerFlat bottomed FlaskStepsPour 1 litre of waterin beaker, water takes shape of beakerNow we pour same water intoglass tumbler, water takes shape of glass tumblerSimilarly if we put it(टीचू)
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