If Shafin were twice as old as he is now, he would be 40 years older than Monir. If Monir is 10 years younger than Shafin, how old is Shafin?

If Shafin were twice as old as he is now, he would be 40 years older than Monir. If Monir is 10 years younger than Shafin, how old is Shafin?

A 50

B 30

C 35

D 40

Solution

Correct Answer: Option B

Suppose,

Shafin’s current age =x years

monir’s current age = (x-10) yers here, 2x=(x-10)+40 or,x=30 years