If x is less than y by 50% then y exceed x by: Choose the most appropriate option
A) 33.33 % B) 100 % C) 75 % D) 66.66 % E) none of these

Rationale: "using formula ( x / ( 100 - x ) * 100 ) where x is percentage decrease ( here it is 25 % ) = > 50 ( 100 - 50 ) * 100 = 100 % answer : b"
Answer: B