RRB NTPC · Question 22

In a school, the average age of boys and girls together is 16.8 years, the average age of boys is 15.4 years, and the average age of girls is 18.2 years. The ratio of number of boys to girls in the school is:

1. A

   3 : 2

2. B

   3 : 5

3. C

   2 : 3

4. D

   1 : 1