Question

7. The boys and the girls in a school are in the ratio 9 : 5. If the total strength of the school is
448. find the number of girls.
1575 between Kamal and Madhu in the ratio 7:2.​

Answer 1

Step-by-step explanation:

Let the common ratio be

$x$

$9x + 5x = 448$

$14x = 448$

$x = \frac{448}{14}$

$x = 32$

Boys = 9x = 9*32

= 288

Girls = 5x = 5*32

= 160

2)) Let the common ratio be x

$7x + 2x = 1575$

$9x = 1575$

$x = \frac{1575}{9}$

$x = 179$

Kamal = 7x = 7*179

= 1,253

Madhu = 2x = 2*179

= 358