Question

Elisa bought 7 1/2 dozen oranges from a shop. If 30% were rotten, what is the number of good ones?
A)27
B)63
C)30
D)70

Answer 1

If 30% are rotten, then 70% are good.

Then you just multiply the percentage of good ones (70%) by the total number of oranges. Remember that she bought 7 1/2 dozen, not 7 1/2 oranges. So the total number of oranges is 7 1/2 x 12.

Answer 2

thanks!