QA – Placement Quizzes | Age | Question 11

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 daughter?
(A) 10
(B) 30
(C) 32
(D) 37


Answer: (A)

Explanation: Say present age of mother =m
daughter’s age =d
m+d = 45 ————-(1)
(m-5)(d-5) = 30(d-5) ——–(2)
d = 10

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