13
Q:
A) 12 years | B) 10 years |
C) 14 years | D) 13 years |
Answer: A) 12 years
Explanation:
Explanation:
Given the average age of couple and their son = 40
=> Sum of age (H +W +S) = 40×3
Let the age of daughter in law at the time of marriage = D years
Now after 10 years,
(H + S +W) + 3×12 + D +12 + 10 = 38×5
178 + D = 190
D = 190 -178 = 12 years