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    Question

    Shopkeeper bought 16 fans each at Rs.4200 and he sold 10

    fans at a profit of 5 %. On other fans, he faced loss of 15 %. What percentage of loss or profit is faced by the shopkeeper in the whole transaction?
    A 2.5% of loss Correct Answer Incorrect Answer
    B 4% of loss Correct Answer Incorrect Answer
    C 5% of profit Correct Answer Incorrect Answer
    D 6.5% of profit Correct Answer Incorrect Answer
    E 8% of loss Correct Answer Incorrect Answer

    Solution

    Cost price of each fan = Rs.4200
    Cost price of sixteen fans = 16*4200 = Rs.67200
    Selling price of ten fans = 4200 [1+(5/100)] *10
    = 42000 (21/20) = Rs.44100
    Selling price of remaining six fans = 4200 *6*[1-(15/100)]
    = 25200*(17/20) = Rs.21420
    Selling price of sixteen fans = 44100 +21420 = Rs.65520
    There is loss,
    Loss percentage = [(cost price of sixteen fans - Selling price of sixteen fans) / cost price of sixteen fans] * 100
    = [(67200-65520)/67200] *100
    = 1680/672 = 2.5 %

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