The cost price of 40 articles is the same as the selling price of x articles. If the profit is 25%, what is x?  Select:
A) 26	B) 28	C) 30	D) 32	E) 34

Rationale: "let the cost price = y the cost price of 40 articles = 40 y the selling price of x articles = 1.25 y * x 1.25 y * x = 40 y x = 40 / 1.25 = 32 the answer is d ."
Answer: D