Ahmad had some strawberry puffs and cranberry puffs. He gave away 150 puffs to his brother. 40% of them were strawberry puffs and the rest were cranberry puffs.

1. How many cranberry puffs did he give his brother?
2. Ahmad gave some strawberry puffs to his cousin. ³₅ of all the puffs he gave away to his brother and his cousin were strawberry puffs. How many strawberry puffs did he give his cousin?

(a)
Percentage of cranberry puffs
= 100% - 40%
= 60%

Number of cranberry puffs that Ahmad gave to his brother
= 60% x 150
= ⁶⁰₁₀₀ x 150
= 90 

(b)
Fraction of all the puffs he gave away to his brother and his cousin that were cranberry puffs
= 1 - ³₅
= ²₅

2 u = 90

1 u = 90 ÷ 2 = 45

Number of strawberry puffs that Ahmad gave to his brother and his cousin
= 3 u
= 3 x 45
= 135

Number of strawberry puffs that Ahmad gave to his brother
= 150 - 90
= 60

Number of strawberry puffs that Ahmad gave to his cousin
= 135 - 60
= 75

Answer(s): (a) 90; (b) 75