At present, father’s age is 4 times more than that of his son. 6 years ago father’s age was 10 times more than that of his son. What is their present age?

A 56 and 147 years

B 36 and 9 years

C 32 and 8 years

D 40 and 10 years

Correct Answer: Option B

suppose, age of son = x years age of father=4x years here, (4x-6)=10(x-6) or,6x=54 or,x=9 so, age of son=9 years age of father=36 years