A.  10

B.  15

C.  20

D.  25

1
Correct Answer :
20
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

=> x = 14

=> Son's age after 6 years = (x+6) = 20 years


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