The price of lunch for 20 people was $300 including a 20% gratuity for service. What was the average price per person, EXCLUDING the gratuity?  Choose the correct choice:
A) 11.73
B) 12.5
C) 13.8
D) 14
E) 15.87
Clearly 12.5 is the answer   I used POE here   Lets consider option (12.5)   20*12.5= 
<gadget id="calculator">20*12.5</gadget>
<output>250</output>
250 now 250(120/100)=300   =&gt; possible ANSWER IMO 12.5
<result>B</result>
The price of lunch for 20 people was $300 including a 20% gratuity for service. What was the average price per person, EXCLUDING the gratuity?