Question

Pinky is presently y year old .In three years older will be seven times as old he was three years old ago.find its present age.

Answer 1

Pinky's present age=y

her age three yrs before=y-3

her age after 3yrs=y+3

ATQ

7(y-3)=y+3

7y-21=y+3

7y-1y=3+21

6y=24

y=24/6

y=4

Pinky's present age=y=4years