Question

Thrice my age three years back subtracted from thrice my age three years hence gives my age. How old am I now?
1. 21 Years
2. 15 Years
3. 18 Years
4. 24 Years

Answer 1

Correct Answer - Option 3 : 18 Years

Given :

Let my present age now = x

My age in three years time = 3 + x

My age three years ago = x - 3

Calculations:

According to question,

x = 3(x + 3) - 3(x - 3)

x = 3x + 9 - 3x + 9

x = 18

∴ Now I am 18 years old.