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    A shopkeeper offers the following four schemes. A) Two successive discounts of 28% and 28% B) Buy 1, get 4 C) Discount of 35% D) Two successiv
    Question

    A shopkeeper offers the following four schemes.
    A) Two successive discounts of 28% and 28%
    B) Buy 1, get 4
    C) Discount of 35%
    D) Two successive discounts of 27% and 26%
    Which scheme is best for the customer?

    A.

    D

    B.

    B

    C.

    A

    D.

    C

    Correct option is B

    Given
    Scheme A: 28% and 28% successive discounts
    Scheme B: Buy 1, get 4
    Scheme C: 35% fixed discount
    Scheme D: 27% and 26% successive discounts
    Formula Used
    Equivalent successive discount = a+ba×b100 a + b - \frac{a \times b}{100}​​
    Discount % for 'Buy X get Y' = Free ItemsTotal Items×100\frac{\text{Free Items}}{\text{Total Items}} \times 100​​
    Solution
    Scheme A equivalent discount = 28+2828×28100=567.84=48.16%28 + 28 - \frac{28 \times 28}{100} = 56 - 7.84 = 48.16\%​​
    Scheme B (Buy 1 get 4): The customer gets 4 items free out of 5 total items. Discount = 34×100=75%\frac{3}{4} \times 100 = 75\%​​
    Scheme C discount = 35%
    Scheme D equivalent discount = 27+2627×26100=537.02=45.98%27 + 26 - \frac{27 \times 26}{100} = 53 - 7.02 = 45.98\%​​
    Comparing all options, Scheme B provides the maximum discount of 75%, which is the best for the customer.
    Final Answer
    So the correct answer is (b)

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