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    Question

    What will be the difference between the SI and CI @

    10%p.a on a sum of Rs. 9000 for 4 years?  
    A Rs. 544 Correct Answer Incorrect Answer
    B Rs. 520.32 Correct Answer Incorrect Answer
    C Rs. 577.512 Correct Answer Incorrect Answer
    D Rs. 576.9 Correct Answer Incorrect Answer

    Solution

     S.I = (P x R x T) / 100 = ( 9000 x 10 x 4)/100 = Rs. 3600 CI = P (1 + R/100) t    – P                                              CI = 9000 [1 + 10/100]⁴    _  9000 CI = 9000 x 11/10 x 11/10 x 11/10 x 11/10 – 9000 =    13176.9 - 9000 =     Rs.4176.9 Difference = C.I – S.I   = 4176.9 -3600 = Rs. 576.9

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