Question : A shopkeeper used to allow a discount of Rs. 20 on a product. He doubled the discount on the product and sold it for Rs. 80. What was the percentage of the discount offered?
Option 1: 20%
Option 2: 25%
Option 3: 30%
Option 4: 33.33%
Correct Answer: 33.33%
Solution :
New discount = Rs. 40
Selling price = Rs. 80
Marked Price of the article = Rs. 80 + Rs. 40 = Rs. 120
If the discount is $x$%, then,
$x$% of 120 = 40
⇒ $\frac{x}{100} \times 120 = 40$
⇒ $x = \frac{40 \times 100}{120}$
$\therefore x = 33.33$%
Hence, the correct answer is 33.33%.
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