Question

In a class of 45 students, the number of girls is 7/8 of the number of boys.
Find the number of girls in the class
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Answer 1

Answer:

Let no. of boys be x

No. of girls= 7/8 of x

x+(7/8)x=45

(8x+7x)/8=45

15x/8=45

15x=45*8

x= 360/15

x=24

therefore, no of girls = 45-24

=21