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      Question

      A sum amounts to Rs 6900 in 2 years at 15% per annum

      simple interest. Find the principal.
      A 4700 Correct Answer Incorrect Answer
      B 5300 Correct Answer Incorrect Answer
      C 3600 Correct Answer Incorrect Answer
      D 5100 Correct Answer Incorrect Answer

      Solution

      ATQ, Amount = P + SI SI for 2 years at 15%: SI = P x 15 x 2 / 100 = 3P/10 So, Amount = P + 3P/10 = 13P/10 Given: 13P/10 = 6900 P = 6900 x 10 / 13 = 5300

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