Question

A father is 30 years older than his son. He will be three times as old as his son after 5 years. What is the father's present age? ( A ) 45 ( B ) 40 ( C ) 30 ( D ) 35

Answer 1

Answer:

I think the answer shall be 30

Answer 2

Answer:

Age of father = 40 years

Step-by-step explanation:

Father age = F

Son age =S

A. S. Q

S+30 =F ......(i)

After five years,

F+ 5= (S+5)3

Replace the value

S+30+5= 3S +15

3S-S = 35-15

2S = 20

S = 20/2

S= 10

If S =10 then,

F = 10 +30

F = 40