Jar B has 20% more marbles than jar A. What percent of the marbles in jar B have to be moved to jar A, in order for the number of marbles in both jars to be equal?
Lets see if the next procedure can explain what you need: Try have A contain, for example, 100 B has 20% more: 20% is 20/100 or 0.20
20% of 100 = 0.02*100= 20
so B has 100+20 = 120
to make the number equal you want to move 10 from B to A so both have
110 I Hope this can help you
