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  1. A retailer offers the following discount schemes for buyers on an article .
    i. Two successive discounts of 10 % .
    ii. A discount of 12 % followed by a discount of 8 %.
    iii. Successive discount of 15 % and 5 % .
    iv. A discount of 20 % .
    The selling price will be minimum under the scheme
    1. i
    2. ii
    3. iii
    4. iv
Correct Option: D

i. Equivalent single discount to 10 % and 10 % = 10 + 10 - (10 x 10)/100 % = 19 %
ii. Equivalent single discount to 12 % and 8 % = 12 + 8 - (12 x 8)/100 = 20 - 0.96 = 19.04 %
iii. Equivalent single discount to 15 % and 5 % = 15 + 5 - (15 x 5)/100 = 20 - 0.75 = 19.25 %
iv. Equivalent single discount to 20 % = 20 % So, the selling price will be minimum under the scheme iv as in this scheme, the discount is maximum .


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