The ratio of boys to girls in a class is 3:2. If 10% of boys and 15% of girls are absent, what fraction of the total students are present? MCQ with Answer and Explanation

Explanation:
Original x, xy=144. 0.9x(y+4)=144 → 129.6 + 3.6x =144 → 3.6x=14.4 → x=4, reduced 3.6. Option C 3.6? But 3.24 is there. Check: x=4, reduced 3.6. So answer C. I'll set option C Rs. 3.6.

Explanation:
1.25 × 0.75 = 0.9375, 0.9375x = 75 → x = 80.

Explanation:
A=1.25B, B=0.8C → A=1.25×0.8C = C, so C=200.