A shopkeeper sells his goods at cost price but uses a faulty meter that weighs 900 grams. Find the profit percent.  Choose the correct choice from the following choices:  A) 12.11  B) 11.11  C) 13.11  D) 14.11  E) 15.11

Rationale: "explanation : ( 100 + g ) / ( 100 + x ) = true measure / faulty measure x = 0 true measure = 1000 faulty measure = 900 100 + g / 100 + 0 = 1000 / 900 100 + g = 10 / 9 * 100 g = 11.11 answer : b"
Answer: B