The pie chart represents the distribution of population in a village. If there are 432 boys in the village, calculate the total population of the village.

Given that the pie chart represents the distribution of population in a village. If there are 432 boys in the village then, 81 ° → 432 1 ° → 432 81 360 ° → 432 81 × 360 360 ° → 1920 Therefore, the total population of the village is 1920

The quantity of petrol filled in a car and the cost of petrol are given in the following table : Quantity of petrol (in L ) 10 15 20 25 Cost of petrol (in ₹ ) 800 1200 1600 2000 Draw a line graph representing the above data. Also, find the cost of 18 L of petrol using the graph. How must petrol be purchased for ₹ 1040 ?

Given table is Quantity of petrol (in L ) 10 15 20 25 Cost of petrol (in ₹ ) 800 1200 1600 2000 On the graph, let the quantity of petrol on X -axis and the cost of petrol on Y -axis The cost of 18 L of petrol is ₹ 1440 and 13 L of petrol be purchased for ₹ 1040 .

If y -coordinate is 5 2 times of x -coordinate. Then, formed a table for it and draw a graph.

Given that y -coordinate is 5 2 times of x -coordinate. Then, y = 5 2 x 2 y = 5 x Putting x = 0 , 1 , 2 , 3 successively and getting the corresponding value of y . x 0 1 2 3 y 0 2 . 5 5 7 . 5 Along the x -axis: Take 1 small square = 1 unit. Along the y -axis: Take 1 small square = 1 units.

If the simple interest on a certain sum is 100 per year. Then, S = 100 × x , where x is the number of years. Draw a graph for the above function.

The given function is S = 100 × x Putting x = 1 , 2 , 3 , 4 successively and getting the corresponding value of S . we get the table given below. x 1 2 3 4 S = 100 × x 100 200 300 400 Along the x -axis: Take 1 small square = 1 unit. Along the y -axis: Take 1 small square = 50 units.

If the simple interest on a certain sum is 100 per year. Then, S = 100 × x , where x is the number of years. From the graph, find the value of S , when, x = 7 and x = 4

The given function is S = 100 × x Putting x = 1 , 2 , 3 , 4 successively and getting the corresponding value of S . we get the table given below. x 1 2 3 4 S = 100 × x 100 200 300 400 Along the x -axis: Take 1 small square = 1 unit. Along the y -axis: Take 1 small square = 50 units. x -axis represents the number of years X . From the graph, when x = 7 the value of S = 700 and when x = 4 the value of S = 400

Draw a histogram to represent the following data. Class Interval 20 - 25 25 - 30 30 - 35 35 - 40 40 - 45 Frequency 45 60 25 30 55

A histogram is a chart that groups numeric data into bins, displaying the bins as segmented columns. They're used to depicting the distribution of a dataset: how often values fall into ranges. Along the x -axis: Take 1 small square = 5 unit. Along the y -axis: Take 1 small square = 5 units.

E M B I B E

All In One MATHEMATICS CBSE Class 8>Chapter 15 - Introduction to Graphs>Chapter Test>Q 9

EASY

8th CBSE

IMPORTANT

Earn 100

The pie chart represents the distribution of population in a village.

Calculate the percentage of the population in the village who are girls.

Important Questions on Introduction to Graphs

EASY

8th CBSE

IMPORTANT

All In One MATHEMATICS CBSE Class 8>Chapter 15 - Introduction to Graphs>Chapter Test>Q 9

The pie chart represents the distribution of population in a village.

Question Image

If there are $432$ boys in the village, calculate the total population of the village.

EASY

8th CBSE

IMPORTANT

All In One MATHEMATICS CBSE Class 8>Chapter 15 - Introduction to Graphs>Chapter Test>Q 10

The quantity of petrol filled in a car and the cost of petrol are given in the following table :

Quantity of petrol (in $L$ )	$10$	$15$	$20$	$25$
Cost of petrol (in $₹$ )	$800$	$1200$	$1600$	$2000$

Draw a line graph representing the above data. Also, find the cost of $18 L$ of petrol using the graph. How must petrol be purchased for $₹ 1040$ ?

MEDIUM

8th CBSE

IMPORTANT

All In One MATHEMATICS CBSE Class 8>Chapter 15 - Introduction to Graphs>Chapter Test>Q 11

If

y

-coordinate is

\frac{5}{2}

times of

x

-coordinate. Then, formed a table for it and draw a graph.

EASY

8th CBSE

IMPORTANT

All In One MATHEMATICS CBSE Class 8>Chapter 15 - Introduction to Graphs>Chapter Test>Q 12

If the simple interest on a certain sum is $100$ per year. Then, $S = 100 \times x$ , where $x$ is the number of years.

Draw a graph for the above function.

EASY

8th CBSE

IMPORTANT

All In One MATHEMATICS CBSE Class 8>Chapter 15 - Introduction to Graphs>Chapter Test>Q 12

If the simple interest on a certain sum is $100$ per year. Then, $S = 100 \times x$ , where $x$ is the number of years.

From the graph, find the value of $S$ , when, $x = 7$ and $x = 4$

EASY

8th CBSE

IMPORTANT

All In One MATHEMATICS CBSE Class 8>Chapter 15 - Introduction to Graphs>Chapter Test>Q 13

Draw a histogram to represent the following data.

Class Interval	$20 - 25$	$25 - 30$	$30 - 35$	$35 - 40$	$40 - 45$
Frequency	$45$	$60$	$25$	$30$	$55$

MEDIUM

8th CBSE

IMPORTANT

All In One MATHEMATICS CBSE Class 8>Chapter 15 - Introduction to Graphs>Chapter Test>Q 14

If $x$ and $y -$ coordinates are related to $y = 4 x - 4$ , then draw the graph by taking $x = 1, 3, 5$ and $8$ , also find the values of $y$ when $x = 9$ and $x = 7$ .