Question

my question no. is. 10

Answer 1

Ratio = 7:5

no. of girls = 7x
no. of boys = 5x

boys be = 8

=7x = 5x + 8
= 7x - 5x ≠ 8
= 2x = 8
x = 8/2
x = 4

• no. of girls = 7 × x = 7 × 4 = 28
no. of boys = 7 × x = 5 × 4 = 20

Total no. of students = 28 + 20 = 48

• Total number of students = 48


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