math

The difference between the simple interest and compound interest on a certain sum for 2 years at the rate of 5% per annum is rupees 205.find the sum.

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  1. let the sum be x

    x(1.05)^2 - x - x(.05)(2) = 205
    x(1.05^2 - 1 - .05(2) ) = 205
    ....

    let me know what you got

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