Question

A boy eats 25% of the cake and gives away 35% of it to his friends. What percent of the cake is still left with him?

Answer 1

Let total cake = 100

Cake which was eaten by the boy = 25

Cake which was given to his friends = 35

∴ Balance cake = 100 - (25 + 35)

= 100 - 60 = 40

Hence he has 40% of the cake with him.