Erin works in the school cafeteria serving soup. Each bowl of soup has 10 ounces, and Erin can serve 5 bowls per minute. If the pot of soup has 6 gallons of soup, how long will it take Erin to serve all the soup, rounded to the nearest minute? (There are 128 ounces to a gallon.)
First find the number of ounces Erin serves per minute: 10 ounces/bowl * 5 bowls/minute = 
<gadget id="calculator">10*5</gadget>
<output>50</output>
50 ounces/minute.
Then find the number of ounces in the pot: 6 gallons * 128 ounces/gallon = 
<gadget id="calculator">6*128</gadget>
<output>768</output>
768 ounces.
Then divide the total amount of soup by the amount of soup Erin serves per minute: 768 minutes / 50 ounces/minute = 
<gadget id="calculator">768/50</gadget>
<output>384/25 = around 15.36</output>
15.36 minutes, which rounds down to 15 minutes.

<result>15</result>