Question:
Tick $(\checkmark$ 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) $30^{\circ}$
(b) $37 \frac{1}{2}^{\circ}$
(c) $45^{\circ}$
(d) $60^{\circ}$
Solution:
(b) $37 \frac{1}{2}^{\circ}$
Central angle of the sector representing travel expenses $=\left(\frac{\text { value of expenses on travel }}{\text { monthly income }} \times 360\right)^{\circ}$
$=\left(\frac{250}{2400} \times 360\right)^{\circ}$
$=37 \frac{1}{2}^{\circ}$
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