Three years ago, the ratio of the age of father to that of his son was 8 : 3. After 4 years, their ages will be the ratio 11 : 5. What is the present age (in years) of the father ?
Answer & explanation
Correct answer: option 2
ATQ,
Lets assume, 3 years ago father's age is 8x and son's age is 3x
Given after 4 years ratio of their ages ⇒ \(\frac{8x + 3 + 4}{3x + 3 + 4}\) = \(\frac{11}{5}\)
⇒ 40x + 35 = 33x + 77
⇒ x = 6
Father's present age = 51 years