LIC AAO Model Paper 10

Y^s present age = y years (let)
∴ X’s present age = (3y + 3) years
∴ Z’s present age = 2y years According to the question,
3y + 3- 2y = 12 y + 3 = 12
⇒ y = 12-3 = 9 years
∴ Z’s present age = 2y = 2x9 = 18 years.