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      Question

      Anita invests Rs. 9,200 at 7% simple interest per annum for

      3 years. If the total amount becomes Rs. '2k', then calculate the product of digits of 'k'.
      A 900 Correct Answer Incorrect Answer
      B 500 Correct Answer Incorrect Answer
      C 740 Correct Answer Incorrect Answer
      D 800 Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      ATQ,

      Simple interest = Principal × Rate × Time ÷ 100

      Interest = 9,200 × 7 × 3 ÷ 100 = Rs. 1,932

      2k = 9,200 + 1,932

      Or, 2k = 11,132

      Or, 'k' = 5,566

      Required product = 5 × 5 × 6 × 6 = 900

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