Question

Tick (✓) the correct answer:
A man's monthly salary is Rs 2400 and his monthly expenses on travel are Rs 250. The central angle of the sector representing travel expenses in the pie chart would be
(a) 30°
(b) $37\frac{1}{2}°$
(c) 45°
(d) 60°

Answer 1

(b) $37\frac{1}{2}°$
$\mathrm{Central}\mathrm{angle}\mathrm{of}\mathrm{the}\mathrm{sector}\mathrm{representing}\mathrm{travel}\mathrm{expenses}=\left(\frac{\mathrm{value}\mathrm{of}\mathrm{expenses}\mathrm{on}\mathrm{travel}}{\mathrm{monthly}\mathrm{income}}\times 360\right)°$
$$\begin{gathered} =\left(\frac{250}{2400}\times 360\right)° \\ =37\frac{1}{2}° \end{gathered}$$