Zane had some chocolate chip scones and apple scones. He gave away 160 scones to his brother. 40% of them were chocolate chip scones and the rest were apple scones.

1. How many apple scones did he give his brother?
2. Zane gave some chocolate chip scones to his sister. ³₅ of all the scones he gave away to his brother and his sister were chocolate chip scones. How many chocolate chip scones did he give his sister?

(a)
Percentage of apple scones
= 100% - 40%
= 60%

Number of apple scones that Zane gave to his brother
= 60% x 160
= ⁶⁰₁₀₀ x 160
= 96 

(b)
Fraction of all the scones he gave away to his brother and his sister that were apple scones
= 1 - ³₅
= ²₅

2 u = 96

1 u = 96 ÷ 2 = 48

Number of chocolate chip scones that Zane gave to his brother and his sister
= 3 u
= 3 x 48
= 144

Number of chocolate chip scones that Zane gave to his brother
= 160 - 96
= 64

Number of chocolate chip scones that Zane gave to his sister
= 144 - 64
= 80

Answer(s): (a) 96; (b) 80