If the price of an article went up by 25%, then by what percent should it be brought down to bring it back to its original price?
Choose the most appropriate option:  A) 20 %  B) 2 / 8 %  C) 2 / 1 %  D) 1 / 3 %  E) 2 / 7 %

Rationale: let the price of the article be rs . 100 . 25 % of 100 = 25 . new price = 100 + 25 = rs . 125 required percentage = ( 125 - 100 ) / 125 * 100 = 25 / 125 * 100 = 20 % . answer : a
Answer: A