The cost price of 20 articles is the same as the selling price of x articles. If the profit is 25% then determine the value of x.  Choose the correct answer.
A) 14 B) 15 C) 16 D) 17 E) 18
Explanation:   Let the cost price 1 article = Re 1   16ost price of x articles = x   S.P of x articles = 20   Gain = 20 -x   =&gt;25=(20−x/ x∗100)   =&gt;2000−100x=25x   =&gt;x=16   Option 16
<result>C</result>
The cost price of 20 articles is the same as the selling price of x articles. If the profit is 25% then determine the value of x.