In a pie chart, the sector for one item has central angle $72^\circ$. What percentage of the total does this…

In a pie chart, the sector for one item has central angle $72^\circ$. What percentage of the total does this item represent?
  1. $15\%$
  2. $18\%$
  3. $20\%$
  4. $25\%$

Solution

Percentage $= (72/360)\times 100 = 20\%$.

Asked in: IMO

Practice more INTRODUCTION TO GRAPHS questions on Aicharya