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    Question

    On selling 21 bottles at Rs. 1620, there is a profit

    equal to the cost price of 6 bottles. The cost price of a bottle is
    A Rs. 45 Correct Answer Incorrect Answer
    B Rs. 50 Correct Answer Incorrect Answer
    C Rs. 55 Correct Answer Incorrect Answer
    D Rs. 60 Correct Answer Incorrect Answer
    E Rs. 108 Correct Answer Incorrect Answer

    Solution

    21 SP – 21 CP = 6 CP 21 SP = 27 CP CP = (21SP)/27 = 1620/27 = Rs. 60

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