Sign in
Please select an account to continue using cracku.in
↓ →
In a class, the respective ratio between the number of boys and the number of girls is 3:1. A test was conducted, wherein the average score of the boys was 73, while that of the entire class was 71. What was the average score of the girls?
Let number of boys = $$3x$$
=> Number of girls = $$x$$
Let average score of girls = $$y$$
Acc. to ques,
=> $$\frac{(73 \times 3x) + (y \times x)}{3x + x} = 71$$
=> $$\frac{x (219 + y)}{4x} = 71$$
=> $$219 + y = 71 \times 4 = 284$$
=> $$y = 284 - 219 = 65$$
Was this solution helpful?
Create a FREE account and get:
Start your IIM journey with the right preparation and crack CAT 2026.
Educational materials for CAT preparation
Ask our AI anything
AI can make mistakes. Please verify important information.
AI can make mistakes. Please verify important information.
91- 6303239042
