The ratio between the present ages of M and N is 8:9. If N is 6 years old than M, what will be the ratio of the ages of M and N after 6 years? (A) 9:10 (B) 7:9 (C) 9:8 (D) 11:10â–ºCorrect Option Correct Option is: ALet M age and N age be 8x years and 9x years. Then 9x – 8x = 6 <=> x = 6 So required ratio will be (8x+6): (9x+6) 54:60 9:10