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    Question

    Rahul bought 25 notebooks for Rs. 200 and he sold them

    in such a manner so that selling price of 10 notebooks is Rs. 100. Find the value of 5(P + 5) if the profit percent earned by Rahul is 'P%'.
    A 120 Correct Answer Incorrect Answer
    B 160 Correct Answer Incorrect Answer
    C 150 Correct Answer Incorrect Answer
    D 125 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ, Cost price of 1 notebook = 200/25 = Rs. 8 Selling price of 1 notebook = 100/10 = Rs. 10 Profit earned = 10 − 8 = Rs. 2 So, 'P' = (2/8) × 100 = 25% P = 25 Required value = 5×(25+5) = 5×30 = 150

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