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Q: A sum of `10,500 amounts to `13,825 in years at a certain rate percent annum simple interest. What will be the simple interest on the same sum for 5 years at double the earlier rate?
  • A. `8,670
  • B. `8,750
  • C. `8,470
  • D. `8,560
Correct Answer: Option B -
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Explanations:

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