A shopkeeper sells his goods at cost price but uses a faulty meter that weighs 960 grams. Find the profit percent.
Choose the correct choice from the following answers.
A) 4.166	B) 3.1	C) 2.1	D) 1.256	E) 3.759

Rationale: "explanation : ( 100 + g ) / ( 100 + x ) = true measure / faulty measure x = 0 true measure = 1000 faulty measure = 960 100 + g / 100 + 0 = 1000 / 960 100 + g = 100 / 96 * 100 g = 4.166 answer : a"
Answer: A