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Q: Seven years ago, the ratio of the ages of A and B was 4 : 5. Eight years hence, the ratio of the ages of A and B will be 9 :10. What is the sum of their present ages in years?
  • A. 56
  • B. 41
  • C. 32
  • D. 82
Correct Answer: Option B -
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Explanations:

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