Question

in a class of 64 pupils,the number of boys is three-fifth of girls.determine the number of girls in the class

Answer 1

Answer is 40 because
Let girls be x
Then boys= 3/5x
So
X+3/5x=64
Thus
X=40on solving...
Hope this helps u

Answer 2

Let the number of girls be x
No of boys = 3/5 of x
According to given
X + 3/5 of x =64
8x=320
X =40
No of girls =40
No.of boys =24
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