<PRE><B>Question 670757</B>
the ratio of boys to girls in a class is 2:3 if there are 18 girls in the class, how many boy are there
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2:3 is the same as 2x:3x where 3x is the number of girls.
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3x = 18
x = 6
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2x = # of boys = 2*6 = 12
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Cheers,
Stan H.</PRE>