If the cost price of 58 articles is equal to the selling price of 50 articles, then what is the percent profit?  Choose one:
A) 12 %	B) 16 %	C) 20 %	D) 24 %	E) 28 %

Rationale: "let x be the cost price of one article . let y be the selling price of one article . 50 y = 58 x y = 1.16 x the answer is b ."
Answer: B