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Answer :
Let the present age of the son be x years.
Present age of Aman = 3x years
Also,10 years ago, the son’s age was = (x – 10) years
10 years ago, the father’s age was = (3x – 10) years
As per the conditions, we have
5(x – 10) = 3x – 10
\(\Rightarrow\)5x – 50 = 3x – 10
\(\Rightarrow\) 5x – 3x = 50 – 10[Transposing 3x to LHS and 50 to RHS]
\(\Rightarrow\) 2x = 40
\(\Rightarrow\)x = 40 ÷ 2 = 20
Hence,we have,
The son’s age = 20 years.
and the age of Aman = 20 × 3 = 60 years.