A shopkeeper sells his goods at cost price but uses a faulty meter that weighs 990 grams. Find the profit percent.  Pick
A) 1.05
B) 1.06
C) 1.01
D) 1.08
E) 1.09

Rationale: "explanation : ( 100 + g ) / ( 100 + x ) = true measure / faulty measure x = 0 true measure = 1000 faulty measure = 990 100 + g / 100 + 0 = 1000 / 990 100 + g = 100 / 99 * 100 g = 1.01 answer : c"
Answer: C