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Q: Five years ago, the ratio of the ages of a father and his son was 5 : 3. Which of the following can not be the ratio of their ages 10 years from now?
  • A. 3 : 2
  • B. 8 : 7
  • C. 6 : 5
  • D. 7 : 3
Correct Answer: Option D -
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Explanations:

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