The ratio of two number A and B is 3 : 1. If both numbers are increased by 2, then the ratio of A and B becomes 5 : 3. What is the sum of initial values of A and B?
Show answer & explanation
Correct answer: B
Explanation
Let A = 3x, B = x
Given,
(3x + 2) / (x + 2) = 5 / 3
9x + 6 = 5x + 10
4x = 4
x = 1
A = 3, B = 1
Sum of initial values = 3 + 1 = 4