The ratio of the present ages of A and B is 7 : 8. After 8 years, this will become 9 : 10 . C is 3 years younger to B. What is the present age of C?
Answer & explanation
Correct answer: option 2
Lets Present age of A & B = 7x & 8x
ATQ,
⇒ \(\frac{7x + 8}{8x + 8}\) = \(\frac{9}{10}\)
⇒ 70x + 80 = 72x + 72
⇒ 8 = 2x
⇒ x = 4
So, age of B = 8x = 8 × 4 = 32 years
Age of C = 32 - 3 = 29 years