Question

The ratio of boys to girls in the sixth grade is 2:3. If there are 24 boys, how many girls are there?

Answer 1

36 girls because 24/2=12 and 12•3=36

Answer 2

There are 36 girls.
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Explanation:
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2:3 = 24:x ;  Solve for "x" ;
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2/3 = 24/x ; 

Solve for "x" ;

2x = 24 * 3 ; 

DIvide each side by "2" ;
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2x / 2  = (24 * 3) /2 ; 

 x = 12 * 3 = 36 .

There are 36 girls.