If in a class, 10% of the girls are equal to one-fourth of the boys in the school, then the ratio of girls to the boys in the school is?

5:2

The correct answer is Option (4) → 5:2

Let the number of girls = G and boys = B.

Given:

$10\% \text{ of girls} = \frac{1}{4} \text{ of boys}$

$\frac{10}{100}G = \frac{1}{4}B$

$\frac{G}{10} = \frac{B}{4}$​

Cross-multiply:

$4G = 10B$

$2G = 5B$

$\frac{G}{B} = \frac{5}{2}$​

Correct answer: 5 : 2