Question

50% of cakes baked were party cake 1/5 were fruit cakes and the rest sponge cakes. What percentage of cakes were sponge cakes

Answer 1

30%

Explanation:

Think of it all as 100 parts. 1/5 of 100, would be 20, which means that 20% of cakes would be fruit cake. 50% of 100 cakes, is 50 party cakes. 100 - (50+20) = 30, which means 30 cakes are sponge. Since there are a 100 parts, 30% is the answer.

Answer 2

30% were sponge cakes. 50% + 20% = 70%. 70% + 30= 100% Hope this helped!