a) 12 years
b) 14 years
c) 18 years
d) 20 years
Answer: d
Explanation: Let the present ages of son and father be x and (60 –x) years respectively.
Then, (60 – x) – 6 = 5(x – 6)
54 – x = 5x – 30
6x = 84
x = 14
Son’s age after 6 years = (x + 6) = 20 years.
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