Question 499179: in a class of 35 students the number of girls is two-fifth of the number of boys. find the number of girls in the class. Answer by nerdybill(7384) (Show Source):
You can put this solution on YOUR website! in a class of 35 students the number of girls is two-fifth of the number of boys. find the number of girls in the class.
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Let x = number of boys
then
x + (2/5)x = 35
multiplying both sides by 5:
5x + 2x = 175
7x = 175
x = 25 (boys)
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Girls:
(2/5)x = (2/5)25 = (2)5 = 10 (answer)
