Question

The boys and girls in a school are in the ratio 9:5 . If the total strength of the school is 448, find the number of girls

Answer 1

9x+5x=448
14x=448
x=448/14
=32.
no of girls=32*5=160.

hope it helps

Answer 2

The ‘number of girls’ is 160.

To find:

The ‘number of girls’ in a school?

Solution:

The given ratio in school for boys and girls are $\frac{B}{G}=\frac{9}{\mathrm{5}}.$

The total strength B + G = 448 ……….(1)

$B=\frac{9}{5} G$

Substuting B value in the equation (1) such that

$\frac{9}{5} G+G=448$

$14 G=448 \times 5=2240$

$G=\frac{2240}{14}=160$

The value of $B=\frac{9}{5} \times 160=288$

The value of Girls = 160.