5 years ago, the ratio of the age of A to that of B was 4 : 5. Fives years hence, the ratio of the age of A to that of B will be 6 : 7. If at present, C is 10 years younger than B, then what will be the ratio of the present age of A to that of the C ?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 ie 5 : 4
A : B
4 : 5
Present age ratio = A : B : C
5 : 6 : 4
A : B
6 : 7
2 parts = 10 years
1 part = 5 years
A : C = 5 : 4