In a school 10% of the boys are same in number as 1/5th of the girls. what is the ratio of boys to the girls in the school?  Choose the correct choice from the following answers.
A) 5 : 2  B) 2 : 3  C) 1 : 2  D) 3 : 7  E) 2 : 5

Rationale: 10 % of b = 1 / 5 g 10 b / 100 = g / 5 b = g / 2 b / g = 1 / 2 b : g = 1 : 2 answer is c
Answer: C