The ages of A and B are in the ratio 4 : 9. If the difference of their ages is 10 years, compare their ages after 4 years from now.
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3 i.e. 6 : 11.
A : B = 4 : 9
Difference = 5 parts = 10 years → 1 part = 2 years
So A = 8 years, B = 18 years
After 4 years → A = 12, B = 22
Ratio = 12 : 22 = 6 : 11