Question

please tell any of them kitne aate hai apko utne bataie ​

Answer 1

$13. \\ let \: the \: no. \: of \: girls \: be \: x \\ as \: per \: the \: question \\ no. \: of \: boys = \frac{2}{5} x \\ then \\ = > x = 56 - \frac{2}{5} x \\ = > x + \frac{2}{5}x = 56 \\ = > \frac{7}{5} x = 56 \\ = > x = 40 \\ therefore \\ \: no. \: of \: boys = \frac{2}{5} \times 40 = 16 \\ \\ boys = 16 \\ girls = 40$