Question

Govind is four times as old as Ganesh is. 20 years
hence, Govind's age will be twice that of Ganesh's
age. Find Ganesh's present age. (in years)
(A) 20 (B) 10 (C) 15 (D) 30​

Answer 1

Answer:

father=4son

father+20=2(son+20)

father+20=2son+40

father=2son+20

4son=2son+20

2son=20

son=10

father=40

To check

father+20=60

2(son+20)=2(30)=60

Confirmed.