The ratio of the present ages of A and B is 8 : 9. After 9 years, this will become 19 : 21. C is 3 years younger to B. What is the present age of C?
Answer & explanation
Correct answer: option 3
Present age of A & B = 8x : 9x
ATQ,
⇒ \(\frac{8x + 9}{9x + 9}\) = \(\frac{19}{21}\)
⇒ 168x + 189 = 171x + 171
⇒ 18 = 3x
⇒ x = 6
So, age of B = 9x = 9 × 6 = 54 years
Age of C = 54 - 3 = 51 years