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      Question

      Anjali invested Rs. 9,150 at a simple interest rate of 4%

      p.a. for 5 years. If she receives Rs. '2n' in total, what is the product of all digits in 'n'?
      A 625 Correct Answer Incorrect Answer
      B 750 Correct Answer Incorrect Answer
      C 576 Correct Answer Incorrect Answer
      D 450 Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      ATQ,

      Simple interest = Principal × Rate × Time ÷ 100

      Interest earned = 9,150 × 4 × 5 ÷ 100 = Rs. 1,830

      2n = 9,150 + 1,830

      Or, 2n = 10,980

      Or, n = 5,490

      Required product = 5 × 4 × 9 × 0 = 0

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