SOLUTION: the ratio of boys to girls in a class is 2:3. there are 10 boys in the class. how many girls are there?
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Question 708806: the ratio of boys to girls in a class is 2:3. there are 10 boys in the class. how many girls are there?
Answer by ptaylor(2198) (Show Source): You can put this solution on YOUR website!
Let x=number of children in the class
If the ratio is 2:3 this means that out of every 2+3=5 children
2/5 are boys and 3/5 are girls, so
(2/5)x=10 multiply each side by (5/2)
x=25----number of children
25-10=15----number of girls
CK
2:3=10:15-----OK
Hope this helps---ptaylor
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