A) 13
B) 15
C) 17
D) 20
Correct Answer: A
Solution :
Let the father's age be x and the sons's age be y. Then, \[x-y=y\] or \[x=2y\] Now, \[x=36,\] So \[2y=36\] or \[y=18.\] \[\therefore \] Son's present age = 18 yr. So, son's age 5 yr ago\[=13\,yr.\]You need to login to perform this action.
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