If the cost price of 72 articles is equal to the selling price of 60 articles, then what is the percent profit?
Choose the correct option.
A) 10% B) 15% C) 20% D) 25% E) 30%
Let x be the cost price of one article.   Let y be the selling price of one article.   60y = 72x   y = 1.2x   The answer is 20%.
<result>C</result>
If the cost price of 72 articles is equal to the selling price of 60 articles, then what is the percent profit?