Question

    A shopkeeper purchases two mobile phones for a total of

    Rs. 750. He sells the first mobile at a 20% profit and the second mobile at a 20% loss. If the selling price of both mobile phones is the same, what is the cost price of the first mobile phone?
    A Rs. 300 Correct Answer Incorrect Answer
    B Rs. 450 Correct Answer Incorrect Answer
    C Rs. 500 Correct Answer Incorrect Answer
    D Rs. 350 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Let the cost price of 1st mobile phone be Rs. ‘x’. Then, cost price of 2nd mobile phone = Rs. (750 – x) x × 120% = (750 – x) × 80% 120x = 60000 – 80x 120x + 80x = 60000 200x = 60000 x = 300 So, cost price of 1st mobile phone = Rs. 300

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