Question

The number of hours, spent by a school boy on different activities in a working day, is given below :
$\begin{array}{ccccccc}\text{Activities}& \text{Sleep}& \text{School}& \text{Home}& \text{Play}& \text{Others}& \text{Total}\\ \text{Number of hours}& 8& 7& 4& 2& 3& 24\end{array}$
Present the information in the form of a pie-chart.

Answer 1

Total = 24
$\begin{array}{ccc}& & \\ & \text{Item}& \text{Central angle of each sector will be}\\ \left(i\right)& \text{Sleep}& =\frac{8}{24}\times {360}^{\circ }={120}^{\circ }\\ \left(ii\right)& \text{School}& =\frac{7}{24}\times {360}^{\circ }={105}^{\circ }\\ \left(iii\right)& \text{Home}& =\frac{4}{24}\times {360}^{\circ }={60}^{\circ }\\ \left(iv\right)& \text{Play}& =\frac{2}{24}\times {360}^{\circ }={30}^{\circ }\\ \left(v\right)& \text{Others}& =\frac{3}{24}\times {360}^{\circ }={45}^{\circ }\\ & & {360}^{\circ }\end{array}$
Now we draw a circle and divide it in the sectors having above central angles as shown in the figure.