[計量] Prep Test2(ps)153題
153. 15587-!-item-!-187;#058&010762
At a certain supplier, a machine of type A costs $20,000
and a machine of type B costs $50,000. 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?
(A) $10,000
(B) $11,200
(C) $12,000
(D) $12,800
(E) $13,200
Ans:E；我連題目都不太曉得在幹麻，拜託幫忙了，謝謝！
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