Question 339413: In a group of 72 students if the ratio of boys to girls 5:3, how many boys are in the group? I would like to know how the answer is solved. Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! In a group of 72 students if the ratio of boys to girls 5:3, how many boys are in the group? I would like to know how the answer is solved.
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5:3 is the same as 5x:3x where 5x is # of boys and 3x is number of girls.
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Equations:
5x+3x = 72
8x = 72
x = 9
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5x = 5*9 = 45 (# of boys)
3x = 3*9 = 27 (# of girls)
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Cheers,
Stan H.
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