Answer :

Ratio of number of girls and boys in a class = 7 5

Let, no. of girls = 7x and no. of boys = 5x


According to problem,


7x = 5x + 8


2x = 8


x = 4


Number of girls = 7x = 7 × 4 = 28


Number of boys = 5 × 4 = 20


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