AP State Syllabus AP Board 7th Class Maths Solutions Chapter 7 Data Handling Ex 4 Textbook Questions and Answers.

## AP State Syllabus 7th Class Maths Solutions 7th Lesson Data Handling Exercise 4

Question 1.

Draw a bar graph for the following data.

Population of India in successive census years-

Solution:

Question 2.

Draw a pie chart for the following data.

Solution:

Question 3.

Draw a double bar graph for the following data.

Birth and Death rates of different states in 1999.

Solution:

Question 4.

Draw a pie chart for the following data.

Time spent by a child during a day-

Solution:

Question 5.

The adjoining pic chart gives the expenditure on various items during a month for a family.

(The numbers written around the pie chart tell us the angles made by each sector at the centre.)

Answer the following –

(i) On which item is the expenditure minimum?

(ii) On which item is the expenditure maximum?

(iii) If the monthly income of the family is ₹ 9000, what is the expenditure on rent?

(iv) If the expenditure on food is ₹ 3000, what is the expenditure on education of children?

Solution:

i) Education

ii) Food

iii) Total income is represented by 360° = Rs. 9,000

food represented by 120 = \(\frac{120}{360}\) × 9000 = Rs. 3000

iv) The expenditure on food is represented by 120 = Rs. 3000

Then expenditure on education is represented by \(\frac{60}{120}\) × 3000 = Rs. 1500