In a pie chart of monthly expenses, $25\%$ is spent on Food. The sector angle for Food is:

In a pie chart of monthly expenses, $25\%$ is spent on Food. The sector angle for Food is:
  1. $60^{\circ}$
  2. $72^{\circ}$
  3. $90^{\circ}$
  4. $120^{\circ}$

Solution

Sector angle $= \dfrac{25}{100}\times 360^{\circ} = 90^{\circ}$.

Asked in: IMO

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