Question

in a class of 35 student, the number of girls is 2/5 time the number of boys.Find the number of boys
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Answer 1

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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)

.

Girls:

(2/5)x = (2/5)25 = (2)5 = 10 (answer)

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Answer 2

Answer:

Step-by-step explanation:

35= 2x/5 + 5x/5

35= 7x/5

35*5=7x

175=7x

x=175/7=25 boys