What is Aman 39 s present age if after 20 years his age will be 10 times his age 10 years back ........

Quantitative Aptitude ( CCS) Problems based on Ages

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

6.2 yrs

10 yrs

13.3 yrs

16 yrs

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Explanation:

Let Aman's present age be x
Aman's age before 10 years = x - 10)
Aman's age after 20 years = (x + 20)
We are given that, Aman'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

Hence, option 3 is the correct answer.