Ivan had some banana scones and chocolate chip scones. He gave away 172 scones to his cousin. 25% of them were banana scones and the rest were chocolate chip scones.

1. How many chocolate chip scones did he give his cousin?
2. Ivan gave some banana scones to his brother. ⁴₇ of all the scones he gave away to his cousin and his brother were banana scones. How many banana scones did he give his brother?

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

Number of chocolate chip scones that Ivan gave to his cousin
= 75% x 172
= ⁷⁵₁₀₀ x 172
= 129 

(b)
Fraction of all the scones he gave away to his cousin and his brother that were chocolate chip scones
= 1 - ⁴₇
= ³₇

3 u = 129

1 u = 129 ÷ 3 = 43

Number of banana scones that Ivan gave to his cousin and his brother
= 4 u
= 4 x 43
= 172

Number of banana scones that Ivan gave to his cousin
= 172 - 129
= 43

Number of banana scones that Ivan gave to his brother
= 172 - 43
= 129

Answer(s): (a) 129; (b) 129