If the selling price of 8 articles is same as the cost price of 12 articles. Find the gain or loss percentage?
Choices:
A) 30% gain  B) 30% loss  C) 50% gain  D) 50% loss  E) 60% loss
Explanation:   Let the C.P of each article be Re 1. Then,   S.P of 8 articles = C.P of 12 articles = Rs. 12/-   Now, C.P of 8 articles = Rs. 8/-, S.p of 8 articles = Rs 12/-   Gain = Rs ( 12 - 10 ) = Rs 4/-.   Gain% = ( 4/8 * 100 )= 
<gadget id="calculator">( 4/8 * 100 )</gadget>
<output>50</output>
50% Gain   Answer: Option 50% gain
<result>C</result>
If the selling price of 8 articles is same as the cost price of 12 articles. Find the gain or loss percentage?