Question

In a choir, the ratio of boys to girls is 5 to 6. There are 10 boys in the choir.

What is the total number of boys and girls in the choir?

Answer 1

Answer:

5:6 --> 10:12

Explanation:

A good way to think of this is to provide a perspective: there are 5 boys every time there is 6 girls. So if there is 10 boys, that means there would be 12 girls (because 5 *2 = 10 and 6*2 = 12).

tl:dr: 5 *2 = 10 so 6*2 = 12