The cost price of 30 articles is the same as the selling price of x articles. If the profit is 20%, what is x?
Choose the correct option.
A) 20 B) 21 C) 23 D) 25 E) 27
Let the cost price = y   The cost price of 30 articles = 30y   The selling price of x articles = 1.20y*x   1.20y*x = 30y   x = 30 / 1.2= 
<gadget id="calculator">30 / 1.2</gadget>
<output>25</output>
25   The answer is 25.
<result>D</result>
The cost price of 30 articles is the same as the selling price of x articles. If the profit is 20%, what is x?