If the cost price of 40 articles is equal to the selling price of 25 articles, what is the % profit or loss made by the merchant? Pick one:
A) 25% loss
B) 25% profit
C) 20% loss
D) 60% profit
E) 75% profit
Let the cost price of 1 article be $1.   Therefore, cost price of 40 articles = 40 * 1= 
<gadget id="calculator">40 * 1</gadget>
<output>40</output>
$40   The selling price of 25 articles= cost price of 40 articles = $40.   Now, we know the selling price of 25 articles. Let us find the cost price of 25 articles.   Cost price of 25 articles = 25 * 1= 
<gadget id="calculator">25 * 1</gadget>
<output>25</output>
$25.   Therefore, profit made on sale of 25 articles= Selling price of 25 articles - cost price of 25 articles   = 40 - 25= 
<gadget id="calculator">40 - 25</gadget>
<output>15</output>
$15.   As the profit is in the positive, the merchant has made a profit of $15.   Therefore, % loss= loss/cp * 100   % loss = 15/25 * 100= 
<gadget id="calculator">15/25 * 100</gadget>
<output>60</output>
60%profit.   60% profit
<result>D</result>
If the cost price of 40 articles is equal to the selling price of 25 articles, what is the % profit or loss made by the merchant?