1.

The number of boys and girls in a class is ratio of 7:5. the number of boys is 8 more than girls, find the strength

Answer»

Let the CONSTANT of RATIO be X
then No of BOYS = 7x
No of girls = 5x
also
7x=5x+8
or 2x=8
X= 4
no. of boys =7x= 28
no. of girls =5x=20



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