The ratio of the number of boys and girls in a school is 2 : 3. If 25% of the boys
and 30% of the girls are scholarship holders, the percentage of the school students who are
not scholarship holders is
Answer: A
The number of boys be 2y and number of girls be 3y
25 % of boys \(= 0.25 \times 2y = 0.5y\)
30 % of girls \(= 0.3 \times 3y = 0.9y\)
total scholarship holder \(= 0.5y +0.9y = 1.4y\)
% of no scholership holder \(= \frac{3.6y}{5y} \times 100 = 72\)