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    Question

    A sum of Rs. 10,000 is invested at a rate of 8% per

    annum for 3 years. What will be the difference between the compound interest compounded annually and simple interest at the end of 3 years?
    A Rs. 164.4 Correct Answer Incorrect Answer
    B Rs. 96.8 Correct Answer Incorrect Answer
    C Rs. 197.1 Correct Answer Incorrect Answer
    D Rs. 128.3 Correct Answer Incorrect Answer

    Solution

    Simple interest (SI) = (P ├Ч R ├Ч T) / 100┬а = (10,000 ├Ч 8 ├Ч 3) / 100┬а = Rs. 2,400 Compound interest (CI) = P(1 + R/100)^T - P CI = 10,000(1 + 8/100)^3 - 10,000 CI = 10,000(1.08)^3 - 10,000┬а = 10,000(1.259712) - 10,000┬а = Rs. 2,597.12 Difference = Rs. 2,597.12 - Rs. 2,400┬а = Rs. 197.12 Answer: c) Rs. 197.1

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