Simon had some strawberry puffs and chocolate chip puffs. He gave away 88 puffs to his sister. 25% of them were strawberry puffs and the rest were chocolate chip puffs.

1. How many chocolate chip puffs did he give his sister?
2. Simon gave some strawberry puffs to his brother. ⁵₇ of all the puffs he gave away to his sister and his brother were strawberry puffs. How many strawberry puffs did he give his brother?

(a)
Percentage of chocolate chip puffs
= 100% - 25%
= 75%

Number of chocolate chip puffs that Simon gave to his sister
= 75% x 88
= ⁷⁵₁₀₀ x 88
= 66 

(b)
Fraction of all the puffs he gave away to his sister and his brother that were chocolate chip puffs
= 1 - ⁵₇
= ²₇

2 u = 66

1 u = 66 ÷ 2 = 33

Number of strawberry puffs that Simon gave to his sister and his brother
= 5 u
= 5 x 33
= 165

Number of strawberry puffs that Simon gave to his sister
= 88 - 66
= 22

Number of strawberry puffs that Simon gave to his brother
= 165 - 22
= 143

Answer(s): (a) 66; (b) 143