Question

50% of cakes jenny baked that week was party cakes, 1/5 were fruit cakes and the remainder were sponge cakses what is the percentage of sponge cakes

Answer 1

1/5 is 20 percent
there is 30 percent left which is the percentage of sponge cakes

Answer 2

50% + 1/5 or 20% +x =100% 70%+x=100 X=30%