The ratio of present ages of A and B is 7 : 8. After 6 years from now, the ratio of their ages will be 8 : 9. If C's present age is 10 years more than the present age of A, then the present age (in years) of C is:
Answer & explanation
Correct answer: option 2
Lets assume present age of A is 7x and B is 8x
After 6 years, \(\frac{7x + 6}{8x + 6}\) = \(\frac{8}{9}\)
⇒ 63x + 54 = 64x + 48
⇒ x = 6
A's present age = 42
C's present age = 52 years