In a pie chart, the sector angle for an item is $108^{\circ}$. What percentage does this item represent?

In a pie chart, the sector angle for an item is $108^{\circ}$. What percentage does this item represent?
  1. $25\%$
  2. $30\%$
  3. $36\%$
  4. $40\%$

Solution

Percentage $= \dfrac{108}{360}\times 100 = 30\%$.

Asked in: IMO

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