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    Bipin offers a discount scheme that on buying 7 notebooks, get 3 for free. What will be the sale price (in Rs.) of a notebook with a marked price Rs.
    Question

    Bipin offers a discount scheme that on buying 7 notebooks, get 3 for free. What will be the sale price (in Rs.) of a notebook with a marked price Rs. 185, if the equivalent percentage discount is applied?

    A.

    129.50

    B.

    130

    C.

    130.50

    D.

    129

    Correct option is A

    Given:
    Buy 7, get 3 free
    => pay for 7 but receive 10 notebooks
    Marked price = 185.
    Formula Used:
     selling price per notebook = MP × (1 − discount).
    Solution:
    Effective discount = freetotal=310=30%\frac{\text{free}}{\text{total}} = \frac{3}{10} = 30\%​​
    Discount = 30%
    Selling price per notebook = 185 × 0.70 = 129.50
    So sale price = Rs. 129.50.  
    Exam Hall Method:


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