What is Aslam's present age, if after 20 years his age will be 10 times his age 10 years back?

6.2 years

7.7 years

10 years

13.3 years

Let Aman's present age be x

Aslam's age before 10 years = (x - 10)

Aslam's age after 20 years = (x + 20)

According to question,

Aslam's age after 20 years (x + 20) is 10 times his age 10 years back (x – 10)

Therefore, (x + 20) = 10 (x – 10)

Solving the equation,

we get x + 20 = 10x – 100

9x = 120,

x = 13.3 years