A was twice as old as B, two years ago. If the difference in their ages be 2 years, find A's age.

Options

A. 6
B. 8
C. 10
D. 4

Answer

A

Explanation

Suppose the present age of B
= x years
Therefore, the present age of A = x + 2 years
According to question,
2 (x-2) = x + 2 - 2
`implies2x - 4 = x`
`implies2x-x=4`
`:.x=4`
Age of B =4 years
Age of A=x+2=4+2
=6 years