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
Explanation
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
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