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MCQ Practice Single Best Answer Topic: Problems on Ages

Q The ratio of the present ages of a mother and her daughter is 7: 1. Before Four years, the ratio of their ages was 19: 1. What will be the mother's age four years from now?

Question ID
#4385
Subchapter
Problems on Ages
Action
Choose one option below

Choose Your Answer

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  • A 42 years ✔ ✖
  • B 38 years ✔ ✖
  • C 46 years ✔ ✖
  • D 36 years ✔ ✖
Correct Answer: C

Explanation

Let mother's age be 7x years. Then, daughter's age = x years. 7x-4 / x-4 = 19 / 1 → 7x-4=19 (x-4) 19x-7x=76-4 ⇒ 12x = 72 ⇒ x= 6. Mother's age after 4 years (7x + 4)= (7 x 6 + 4) years = 46 years

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