Question

Each girl in a group of girls contributed as many rupees as the number of boys in the class. The total collection of the class was Rs.1568 and the ratio of the number of boys to that of girls in the class is 1:2. Find the total number of students in the class assuming the boys didn't contribute any money.

• A. 56
• B. 84
• C. 112
• D. 140

Answer 1

The correct option is B

84

Let the number of boys in the class be `x'

2x${}^2$ =1568

x = 28

So the total number of students in the class is 84.