The given bar-graph shows the number of boys and girls in classes A, B, C and D in a school, and the number of teachers allotted to each class.

Which class has the least percentage of girls?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is Option 4 i.e. B.
The percentage of girls in class A = 31/66 × 100 = 46.9%
The percentage of girls in class B = 30/75 × 100 = 40%
The percentage of girls in class C = 32/71 × 100 = 45.07%
The percentage of girls in class D = 34/74 × 100 = 45.9%