Question

Mark has 30 cd's. 40% are country music. 30% pop music. How many CDs are other types of music?

Answer 1

So first you add 40 percent and 30 percent to get 70 percent. After you do that subtract it from 100 to get 30. 30% times 30 is 9 so the answer is 9 cds.

Answer 2

9 cd's because you multiply .7*30 and that is 21 so 30-21=9