At present, A is thrice as old as B. C is 5 years elder than B. The sum of the…
2024
At present, A is thrice as old as B. C is 5 years elder than B. The sum of the ages of A, B, C is 75 years. The ratio of the age of B five years ago to the age of A three years from now is:
- A.
2 : 3
- B.
1 : 4
- C.
4 : 7
- D.
1 : 5
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Correct answer: D
Let B's age be x. A = 3x, C = x + 5. Sum: 3x + x + x + 5 = 75 => 5x = 70 => x = 14. B=14, A=42. Ratio: (B-5):(A+3) = 9:45 = 1:5.