Zeph had some cherry scones and strawberry scones. He gave away 180 scones to his brother. 10% of them were cherry scones and the rest were strawberry scones.

1. How many strawberry scones did he give his brother?
2. Zeph gave some cherry scones to his sister. ³₅ of all the scones he gave away to his brother and his sister were cherry scones. How many cherry scones did he give his sister?

(a)
Percentage of strawberry scones
= 100% - 10%
= 90%

Number of strawberry scones that Zeph gave to his brother
= 90% x 180
= ⁹⁰₁₀₀ x 180
= 162 

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

2 u = 162

1 u = 162 ÷ 2 = 81

Number of cherry scones that Zeph gave to his brother and his sister
= 3 u
= 3 x 81
= 243

Number of cherry scones that Zeph gave to his brother
= 180 - 162
= 18

Number of cherry scones that Zeph gave to his sister
= 243 - 18
= 225

Answer(s): (a) 162; (b) 225