Question

After two successive discount of 20%. The price of a refrigerator is Rs. 12800. What was the original price? A) Rs. 18750 B) Rs. 21700 C) Rs. 25400 D) Rs. 20000

Answer 1

Answer:

D) Rs. 20000

Step-by-step explanation:

Given,

The discount is 20%

The selling price is Rs. 12800 after two successive discounts.

Let X be the original price.

Total discount = ( x + y - xy / 100 ) %  

Here, x = 20 and y =20

Total discount = (20 + 20 - (20*20)/100)%

                        = (40 - 4)% = 36%

So, 64% of X = 12800

⇒ 64/100 * X = 12800

⇒ X = 12800 * 100/64

⇒ X = 20000