Aman’s age is three times his son’s age. Ten years ago he was five times his son’s age. Find their present ages.

Solution

Let the age of Aman’s son be x 

Let the age of Aman will be 3x.

According to the given details, the equation becomes

5(x – 10) = 3x – 10

⇒ 5x – 50 = 3x – 10

⇒ 5x – 3x = -10 + 50

⇒ 2x = 40

⇒ x = 20

Aman’s son age = x = 20 years

Aman age = 3x = 3 × 20 = 60 years

Answer

Aman’s son age= 20 years

Aman age = 60 years

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