The ratio of the present ages of a son and his father is 1 : 5 and that of his mother and his father is 4 : 5. After 2 years the ratio of the age of the son to his mother will be 3 : 10. Find the present age of father.
Answer & explanation
Correct answer: option 2
ATQ,
Mother : Father : Son
4 : 5 : 1
Now,
⇒ \(\frac{4R + 2}{1R + 2}\) = \(\frac{10}{3}\)
⇒ 12R + 6 = 10R + 20
⇒ 2R = 14
⇒ 1R = 7
Hence,
Father's Present age = 5R = 5 x 7 = 35 years