Question

The number of hours spent by a school boy in different activities in a day is given below.

Activity	Sleep	School	Play	Homework	Other	Total
No. of hours	8	7	2	4	3	24

Represent the above information using a pie diagram.

Answer 1

First, we have to compute the central angle for each activity, as shown in the following table.

Sr No.	Activity	No. of hours	Measure of central angle
1	Sleep	8	$\frac{8}{24}\times 360°=120°$
2	School	7	$\frac{7}{24}\times 360°=105°$
3	Play	2	$\frac{2}{24}\times 360°=30°$
4	Homework	4	$\frac{4}{24}\times 360°=60°$
5	Other	3	$\frac{3}{24}\times 360°=45°$
	Total	24

Pie diagram: