Question

the ratio of country albums to jazz albums in a music collection is 2 : 3. If the music collection has 45 albums, how many are country albums?

Answer 1

There would be 30 country albums, because if you divide 45 by 3 you'd get 15. Then you'd multiply 15 by 2 to get your answer 30.

Answer 2

30 country albums because if you divide 45 by 3 you get 15 which is 1/3 of the whole thing. Add another 15 and you get 30 which is 2/3 of it.