A shopkeeper offers the following discount schemes for buyers.
I. Two successive discounts of 15% and 20%
II. Successive discounts of 25 % and 10%
III. A discount of 33%
The selling price will be minimum under the scheme:
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3 i.e. III.
For I:
Single discount of two discounts = - x - y - xy/100 [negative sign shows discount]
⇒ - 15 - 20 + 300/100
⇒ - 35 + 3 = -32%
For II:
Single discount of two discounts = - x - y - xy/100 [negative sign shows discount]
⇒ - 25 - 10 + 250/100
⇒ - 35 + 2.5 = -32.5%
For III:
Discount = 33%
Thus, the selling price will be minimum under the III scheme