Lao is farming chickens. He can sell each chicken for $1.50. A bag of chicken feed weighs 20 pounds and costs $2. Each chicken will need 2 pounds of feed from the time it hatches to the time he sells it. If he makes $65 profit from selling chickens, how many did he sell?
A bag of feed is enough for 10 chickens because 20 / 2 = 
<gadget id="calculator">20/2</gadget>
<output>10</output>
10.
Each chicken costs $.2 to raise because 2 / 10 = 
<gadget id="calculator">2/10</gadget>
<output>1/5 = around 0.2</output>
.2.
Each chicken results in $1.3 of profit because 1.5 - .2 = 
<gadget id="calculator">1.5-.2</gadget>
<output>1.3</output>
1.3.
He sells 50 chickens because 65 / 1.3 = 
<gadget id="calculator">65/1.3</gadget>
<output>50</output>
50.

<result>50</result>