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    Question

    A certain sum of money amounts to Rs 1331 in 3 years at

    10 percent compounded annually. Find the value of (CI-SI)?
    A 31 Correct Answer Incorrect Answer
    B 33 Correct Answer Incorrect Answer
    C 41 Correct Answer Incorrect Answer
    D 62 Correct Answer Incorrect Answer

    Solution

    Given – r =10%, t=3year, A =1331 Let the invested sum =100 The interest of the first year at the rate of 10%=100×10/100=10 1st year10 2nd year101 3rd year10110.1 Total amount =10+10+10+1+1+1+0.1=33.1 ATQ- 33.1=1331 1=10 And now 100=10×100=1000 CI=1331-1000=331 SI=300 The CI-SI =331-300=31.

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