The cost price of 24 articles is the same as the selling price of x articles. If the profit is 20%, what is x?  Choose the correct choice from the following options:
A) 14  B) 16  C) 18  D) 20  E) 22

Rationale: "let the cost price = y the cost price of 24 articles = 24 y the selling price of x articles = 1.20 y * x 1.20 y * x = 24 y x = 24 / 1.2 = 20 the answer is d ."
Answer: D