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    Question

    The difference between the interests received when Rs. x

    is invested in scheme тАШAтАЩ at simple interest for 3 years and at compound interest, compounded annually for 3 years in scheme тАШBтАЩ is Rs. 2560. The rate of interest p.a. for both the schemes is 20%. Find the value of тАШxтАЩ.
    A 20000 Correct Answer Incorrect Answer
    B 15000 Correct Answer Incorrect Answer
    C 25000 Correct Answer Incorrect Answer
    D 16000 Correct Answer Incorrect Answer

    Solution

    Difference = 3PR 2 /100 2 ┬а+ P(R/100) 3
    According to the question,
    2560 = x{(3 ├Ч 20 2 )/100 2 ┬а+ (20/100) 3 }
    Or. 2560 = 0.128x
    Or, x = 20000

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