-
The ratio of the ages of A and B at present is 3:1. Four years earlier the ratio was 4:1. The
present age of A is
-
- 48 years
- 40 years
- 36 years
- 32 years
Correct Option: C
A’s present age = 3x years
B’s present age = x years
4 years ago,
| = | ||
| x − 4 | 1 |
⇒ 4x – 16 = 3x – 4
⇒ 4x – 3x = 16 – 4
⇒ x = 12
∴ A’s present age
= 3x = 3 × 12 = 36 years
