The salary of a person was reduced by 50%. By what percent should his reduced salary be raised so as to bring it at par with his original salary? Answers:
A) 20 %
B) 25 %
C) 50 %
D) 75 %
E) 100 %

Rationale: "let the original salary be $ 100 new salary = $ 50 increase on 50 = 50 increase on 100 = 50 / 50 * 100 = 100 % ( approximately ) answer is e"
Answer: E