Question

Jamie bought 15 apples. he ate 3 apples. what percentage of the apples did jamie eat?

Answer 1

15 apples mean 100%
3 appl. mean   x %
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 x = 3*100/15 = 300/15 = 20%

x = 20%

so jamie eat 20% of the apples 

hope this will help you 

Answer 2

15 apples represents 100%;
15÷5 = 3 apples represents (100÷5)% = 20%;
Jamie eat 20% percentage of the apples.