1.  In a class, the number of boys is more than the numbers of girls by 12% of the total strength. The ratio of boys to girls is ?

A. 11 : 14
B. 14 : 11
C. 25 : 28
D. 28 : 25

Answer: Option B

Explanation:

Let the number of boys and girls be x and y respectively. Then
From question, (x - y ) = 12% of (x + y)
⇒ x/y = 3/25 (x + y )
⇒ 25x - 25y = 3x + 3y
⇒ 22x = 28y
∴ x / y = 28 / 22 = 14 / 11