College of Admission Tests Multan

Age Problems

Solve the question of and select the option from the choices A through D/E. Check your Answer and view the explanation.

Question: 6

The sum of the ages of a father and son is 45 years. Five years ago, the product of their ages was four times the fathers age at that time. The present age of father and son
  • 34, 11
  • 35, 10
  • 36, 9
  • 40, 5

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Correct Answer: C

Let sons age = x years. Then fathers age = (45 - x)years.

(x - 5)(45 - x - 5) = 4(45 - x - 5) hence (x - 5) = 4 so x = 9

Their ages are 36 years and 9 years.