If the cost price of 20 articles is equal to the selling price of 16 articles, What is the percentage of profit or loss that the merchant makes? Choose the most appropriate option.
A) 20% loss  B) 25% profit  C) 33.33 % loss  D) 30.33% loss  E) None of these
Explanation :   Let Cost price of 1 article be Re.1.   Therefore, Cost price of 20 articles = Rs. 20.   Selling price of 16 articles = Rs. 20   Therefore, Selling price of 20 articles is :-   =&gt;20/16×20   =&gt;25.   Therefore, Profit = Selling price - Cost price.   =&gt;25−20=5.   Hence, the percentage of profit = profit x 100/C.P.   =&gt;5/20×100.   =&gt;25% Profit.   Answer : 25% profit
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If the cost price of 20 articles is equal to the selling price of 16 articles, What is the percentage of profit or loss that the merchant makes?