QA – Placement Quizzes | Age | Question 10

The sum of the ages of a mother and daughter is 45 years. 5 years ago, the product of their ages was 30 times the daughter’s age at that time. What is the present age of mother?
(A) 12
(B) 7
(C) 35
(D) 10


Answer: (C)

Explanation: Say present age of mother =m
daughter’s age =d
m+d = 45 ————-(1)
(m-5)(d-5) = 30(d-5) ——–(2)
m=35

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