Question

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

Answer 1

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

Answer 2

Answer:

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Step-by-step 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)

x + 20 = 10x - 100

10 x - x = 20 +100

9x = 120

x = 120/9

x = 13.3

Solving the equation, we get x + 20 = 10x – 100

x = 13.3 years

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