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    Question

    Meera took Rs. 3600 at R% S.I. and Rs. 5400 at (R + 4)%

    S.I. for 3 years. If the total interest amounted to Rs. 3888, find the rate on Rs. 5400.
    A 20% Correct Answer Incorrect Answer
    B 18% Correct Answer Incorrect Answer
    C 16% Correct Answer Incorrect Answer
    D 32% Correct Answer Incorrect Answer

    Solution

    According to question, 3600 ├Ч R/100 ├Ч 3 + 5400 ├Ч (R + 4)/100 ├Ч 3 = 3888 108R + 162R + 162 ├Ч 4 = 3888 270R + 648 = 3888 270R = 3240 R = 12% So, R + 4 = 16%

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