At a certain supplier, a machine of type A costs $30,000 and a machine of type B costs $65,000. 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?  Choose the correct choice from the following answers
A) $6,600
B) $11,200
C) $12,000
D) $12,800
E) $13,200
Total Cost of 2 Machines of Type $6,600   = 20% of (Cost of 2 machine $6,600) + remainder + 40 % remainder   = 20% of 30000 + (30000 - 20% of 30000) + 40% of (30000 - 20% of 30000)   = 79200   Total Cost of 1 Machine of Type B   = 20% of (Cost of 1 machine B) + remainder + 40 % remainder   = 20% of 65000 + (65000 - 20% of 65000) + 40% of (65000 - 20% of 65000)   = 85800   Diff = 85800 - 79200= 
<gadget id="calculator">85800 - 79200</gadget>
<output>6_600</output>
6600   Hence, $6,600.
<result>A</result>
At a certain supplier, a machine of type A costs $30,000 and a machine of type B costs $65,000. 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?