Question

- A person was asked to state his age. His reply was- "Take my age 3
years hence, multiply it by 3, subtract the triple of my age 3 years ago
and you will know how old I am." What is the present age of the person
(in years)?
(a) 24
(b) 20
(c) 32
(d) 18​

Answer 1

Answer:

let his present age be 'x' years

after 3 years he will be 'x+3'

and before 3 years he was ' x-3'

A.T.Q.

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

3x+9 - 3x+9

3x and -3x will be cancel remaining

9+9

= 18