James buys 20 pounds of beef and half that much pork.  He uses 1.5 pounds of meat to make meals at his restaurant.  Each meal sells for $20.  How much money did he make?
He bought 20/2=
<gadget id="calculator">20/2</gadget>
<output>10</output>
10 pounds of pork.
So he has 20+10=
<gadget id="calculator">20+10</gadget>
<output>30</output>
30 pounds of meat.
That means he can make 30/1.5=
<gadget id="calculator">30/1.5</gadget>
<output>20</output>
20 meals.
So he makes 20*20=$
<gadget id="calculator">20*20</gadget>
<output>400</output>
400.

<result>400</result>