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Linear Equations in One Variable
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05/08/2021 12:41 pm
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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.
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05/08/2021 12:43 pm
Let the age of Aman’s son be x then age of Aman will be 3x.
According to the question,
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