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    Question

    A certain sum of money becomes 6000 in 6 years and Rs.

    6240 in 10 years at any certain rate of simple interest. Find the principal amount.
    A Rs. 5040 Correct Answer Incorrect Answer
    B Rs. 5600 Correct Answer Incorrect Answer
    C Rs. 5640 Correct Answer Incorrect Answer
    D Rs. 5630 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Simple interest for 4 years = 6240 – 6000 = Rs. 240 Simple interest for 1 year = 240/4 = Rs. 60 Simple interest for 6 years = 60 × 6 = Rs. 360 So, required principal amount = 6000 – 360 = Rs. 5640

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