标题: 请教一道模考时遇到的题目，从repaying the...后面就完全不理解了，求解释啊！ [打印本页] 作者: 离南 时间: 2011-10-13 09:53 标题: 请教一道模考时遇到的题目，从repaying the...后面就完全不理解了，求解释啊！ At a certain supplier, a machine of type A costs $20000 and a machine of type B costs $ 50000.Each machine can be purched by making a 20 percent down payment and repaying the ramainder of the cost and the finance charges over a period of time.If the finance charges are equal to 40 percent of remainder of the cost,how much less would 2 machine of the remainder of the cost,how much less would 2 machines of type A cost than 1 machine of type B under this arrangment?
A 10000
B11200
C12000
D12800
E13200作者: 牧月 时间: 2011-10-13 09:57
LZ你题目确定没打错么？我觉得这句好奇怪how much less would 2 machine of the remainder of the cost作者: 牧月 时间: 2011-10-13 09:59
A: 20000*0.2+20000*0.8*(1+0.4) B: 50000*0.2+50000*0.8*(1+0.4)