The pie chart below shows the survey results of the sports 200 pupils like. The number of pupils who like badminton only and basketball only is the same.
(a) How many pupils like basketball only?(b) How many pupils like Football?
a) Basketball only = (1/5) (200 ) = 40
b) 1/5 = 20% 1/4 = 25%
So 100 - 20 -20 - 25 - 13 = 22% like Football only
The number who like Football = (22 + 13) (200) = (35)(200) = 70
+103 
