1)

A person was asked to state his age in years. His reply was, "Take my age three years hence, multiply it by 3 and then subtract three times my age three years ago and you will know how old I am." What was the age of the person ?


A) 18 years

B) 20 years

C) 24 years

D) 32 years

Answer:

Option A

Explanation:

Let the present age of the person be x years
Then 3(x+3)-3(x-3)=x
(3x+9) - (3x - 9) = x
x = 18