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    Question

    A businessman sold 2/5 of his stock at a gain of 25% and

    the remaining at a gain of 20%. The overall percentage of gain is
    A 25% Correct Answer Incorrect Answer
    B 28% Correct Answer Incorrect Answer
    C 22% Correct Answer Incorrect Answer
    D 16% Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ALTERNATE MTEHOD: Let CP = 100 So he sold 2/5th I,e 40 in 25% gain so SP1 = 40+25%of 40 = 40 +10 = 50 and he sold remaining 3/5th I,e 60 in 20% gain so SP2 = 60+20%of 60 = 60 +20 = 72 So total SP = 50 +72 = 122 Hence Profit% = 22%

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