Twenty dozen cups cost $1200 less than the total cost of half a dozen plates sold at $6000 each. Calculate the total cost of buying each cup.
Since a dozen has 12 items, half a dozen plates are 12/2 = 
<gadget id="calculator">6</gadget>
<output>6</output>
6.
Half a dozen plates sold at $6000 each cost 6*$6000 = $
<gadget id="calculator">6*6000</gadget>
<output>36_000</output>
36000.
Twenty dozen cups cost $1200 less than the total cost of half a dozen plates, meaning the twenty dozen cups cost a total of $36000-$1200 = 34800.
Since a dozen has 12 items, twenty dozen cups are 20*12 = 
<gadget id="calculator">20*12</gadget>
<output>240</output>
240 cups.
If the twenty dozen cups cost $34800, each cup costs $34800/240=$
<gadget id="calculator">34800/240</gadget>
<output>145</output>
145.

<result>145</result>