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    Question

    A man earns a profit of 10 percent by selling a mobile

    for a certain price. If he sells that mobile at double the price, then what will be the profit percentage?
    A 20 percent Correct Answer Incorrect Answer
    B 110 percent Correct Answer Incorrect Answer
    C 120 percent Correct Answer Incorrect Answer
    D 140 percent Correct Answer Incorrect Answer

    Solution

    Let us assume the cost price of the mobile and selling price of the mobile is CP and SP respectively SP = (110/100) × CP ----(1) 2SP = (220/100) × CP ----(2) P% = [(2.2CP - CP)/C.P]  × 100 = 1.2 × 100 = 120%

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