The price of an article is ₹ 25. After two successive cuts

Percentages

The price of an article is ₹ 25. After two successive cuts by the same percentage, the price becomes ₹ 20.25. If each time the cut was x%, then

  1. x = 9
  2. x = 10
  3. x = 11
  4. x = 11.5

Answer

We have the following equation, 

25 (1 - x/100) (1 - x/100) = 20.25

⇨ (1 - x/100)2 = 20.25 / 25 = 0.81

⇨ (1 - x/100) = 0.9

⇨ x/100 = 0.1

⇨ x = 10

The correct option is B.