At a certain supplier, a machine of type A costs $20,000 and a machine of type B costs $60,000. Each machine can be purchased by making a 20 percent down payment and repaying the remainder of the cost and the finance charges over a period of time. If the finance charges are equal to 40 percent of the remainder of the cost, how much less would 2 machines of type A cost than 1 machine of type B under this arrangement?  Choices: A) $10,000 B) $11,200 C) $12,000 D) $12,800 E) $26,400
Total Cost of 2 Machines of Type A   = 20% of (Cost of 2 machine A) + remainder + 40 % remainder   = 20% of 40000 + (40000 - 20% of 40000) + 40% of (40000 - 20% of 40000)   = 52800   Total Cost of 1 Machine of Type B   = 20% of (Cost of 1 machine B) + remainder + 40 % remainder   = 20% of 60000 + (60000 - 20% of 60000) + 40% of (60000 - 20% of 60000)   = 79200   Diff = 79200 - 52800= 
<gadget id="calculator">79200 - 52800</gadget>
<output>26_400</output>
26400   Hence, $26,400.
<result>E</result>
At a certain supplier, a machine of type A costs $20,000 and a machine of type B costs $60,000. Each machine can be purchased by making a 20 percent down payment and repaying the remainder of the cost and the finance charges over a period of time. If the finance charges are equal to 40 percent of the remainder of the cost, how much less would 2 machines of type A cost than 1 machine of type B under this arrangement?