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Q: A sum of money was invested at a certain rate of simple interest for 4 years. Had the sum been invested at a rate 3% higher than the actual rate, the interest earned would have been ` 720 more. Find the sum initially invested.
  • A. ` 24000
  • B. ` 18000
  • C. ` 6000
  • D. ` 5400
Correct Answer: Option C -
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Explanations:

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