Harut1234 Harut1234

22-01-2015
Mathematics

contestada

In math class the girl to boy ratio is 3to 6 if there are 15 girls how many boys are there?

Respuesta :

MeenaMe MeenaMe

22-01-2015

proprtions

3 / 6 = 15 / x

so 15 * 6 = 90

divide by 3 and get 30 boys

Answer Link

22-01-2015

Another way at looking at it is, for every 3 girls, there are 6 boys or equal to that is a 1:2 ratio. So if there are 15 girls and twice as many guys, there will be 30 guys

Answer Link

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