标题: 求助大神!!!!OG13-CR97 [打印本页] 作者: 瑶瑶喜欢GMAT 时间: 2013-7-28 10:33 标题: 求助大神!!!!OG13-CR97 Hotco oil burners, designed to be used in asphalt plants, are so efficient that Hotco will sell one to the Clifton Asphalt plant for no payment other than the cost savings between the total amount the asphalt plant actually paid for oil using its former burner during the last two years and the total amount it will pay for oil using the Hotco burner during the next two years. On installation, the plant will make an estimated payment, which will be adjusted after two years to equal the actual cost savings.
Which of the following, if it occurred, would constitute a disadvantage for Hotco of the plan described above?
(A) Another manufacturer's introduction to the market of a similarly efficient burner
(B) The Clifton Asphalt plant's need for more than one new burner
(C) Very poor efficiency in the Clifton Asphalt plant's old burner
(D) A decrease in the demand for asphalt (E) A steady increase in the price of oil beginning soon after the new burner is installed
为什么答案是E?看答案没怎么弄明白。我先来说说我的理解:油价上涨导致了Hotco oil burner价格的下降。Price of a burner=Quantity of oil saved *Price of oil per litre (or gallon maybe?)。现在油价上涨了,但是节约的油的数量还是不变,所以burner的价格也会上升。
另外,我觉得D也是对的啊,沥青需求少了,那肯定oil used for burner也少了,那在油价不变的情况下,price of a burner就会下降。但是为什么D不对呢?
不知道那个地方出错了。还请大神指点! 作者: 瑶瑶喜欢GMAT 时间: 2013-7-28 20:14
没人顶啊。。太失落了。。。作者: apaso 时间: 2013-7-29 20:01
Asphlt是公司名字作者: ydingmilan 时间: 2013-7-29 21:27
Hotco公司的收益是Clifton节省的成本,油价上升的话Clifton节省的成本会变少,所以是disadvantage to Hotco。其实理论上我觉得D也是有点损害啦, 但是毕竟D的影响比较间接而且文章并没有支持,D的逻辑是,沥青需求减少,价格下降,Clifton产量减少,Clifton原料使用减少,Clifton节约的油减少,虽然很有逻辑但是文章并没有提到。作者: sunangel1749 时间: 2013-9-21 21:26
是啊 为什么D不对呢?作者: yaozaizai 时间: 2013-9-22 18:58
I could not type in Chinese. Hope you can still understand.
Hotco Company will calculate the amount of oil a company will use in the next 2 years, it is a certain amount of money. Let's say it is X. The Hotco burner uses Y amount of oil. In the end, the company will get (X-Y). If Y is decreased, the company will get more money. 作者: dennis2k 时间: 2014-2-6 03:12
这题我也错选了D,感觉按照大道理来讲D更合理,生产商日子不好过,供应商日子还能好过?肯定也不好过啊!
“the cost savings between the total amount the asphalt plant actually paid for oil using its former burner during the last two years and the total amount it will pay for oil using the Hotco burner during the next two years.”
=> payment is cost saving (with this formula) = paid with former burner in past two years - paid with new bunner in coming two years = Price of past 2 yrs * oil amount used by old burner - Price of next 2 yrs * oil amount used by new burner
so for answer D, a decrease in the demande of asphalt might decrease the oil amount used by new burner, which is a advantage; for answer E, the rising of price of oil will increase the price of next 2 yrs, which is a disadvantge.
This question tells us to answer the question based on the assumption it gave rather than our common sense.作者: bearhawk 时间: 2014-5-29 18:49
假设使用老设备的话原来两年的耗油是2MT, 作者: bearhawk 时间: 2014-5-29 19:07
假设使用老设备的话原来两年的耗油是2MT, 每吨的单价是200美圆,那么总耗油成本是$400,现在假设使用了新BURNER,耗油量下降至1MT,如果这时油价涨到了400美圆, 那么总成本 就变成了 $400,$400-$400=0 B就拿不到一分钱了,如果油价从200美圆涨到了300美圆,2*$200-1*300$=$100 Burner可以赚100美圆,如果没有涨价2*200-1*200=200美圆。
是不是过了太久了。。。
题目上说 payment是last two years 的油费付出-next two years 的邮费付出。
假如现在每台耗油10单位,last two year油价1块,则现在邮费10
不涨价 新机器每台耗油2单位,每台油费2,省8元则hotco赚8元
涨价 仍耗油2,油价2,每台油费4,省6元则赚6元。
等于赚的少了。
主要注意看题目中俩个时间点。作者: enyika2014 时间: 2014-10-17 06:11
題目就不明白什麼意思。好難啊!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!作者: enyika2014 时间: 2014-10-17 06:15
Hotco will get = amount paid for oil in last 2 years - amount paid for oil in next 2 years
now suppose the plant used 100 liters of oil in last 2 years at a price of $2 per liter....which means the plant spent $200 on oil
the price of oil is steadily increasing
now suppose the plane used 70 liters of oils (because the burner is efficient) in next 2 years at a price of $2.30 per liter....which means the plant will spend $161 on oil
Hotco will get = 200 - 161 = $39 for its burner which will be disadvantageous for Hotco because of its plan.作者: frank0401 时间: 2014-10-21 03:37
16楼和18楼的正解。纠结于D的同学是明显搞错了比较对象!
题目说的是未来两年与过去两年的用油量相比呀(between....during the last two years and...during the next two years),不是未来两年用新机器和不用新机器的油量对比!
换句话说,过去两年的用油量已经是固定值了,那么未来两年用的油越少越好,不管是装了新机器节油,还是生产的少,总之用的油比前两年少就行,最好是一点油不用(一点不生产),那样和过去两年比用油费用的差距最大了。
这个题的OG解释非常清楚,一句话就把D否了。我们不用搞这么复杂的计算,明显把简单问题搞复杂了。(如果D改成了沥青的需求增加了,那才复杂了,但是GMAC不会出现两个同时削弱的选项来让你判断哪一个更能削弱,一定是只有一个可以削弱的选项)作者: summer0501 时间: 2015-8-22 11:34
最初也错选D,后来想想 save=2年前油耗/件*2年前件数-2年后油耗/件*2年后件数,依据D项,2年后油耗和件数都下降,那么save 自然上升,所以D项是advantage作者: Jojolalala 时间: 2015-9-30 23:53
“on installation, the plant will make an estimated payment, which will be adjusted after two years to equal the actual cost savings”(之前一直理解安装就估算,估算完了就给钱,所以实在觉得没有一个选项是对的,原来是我脑抽)觉得这句话对我的误导太大了,不造最后一句有什么作用...
现在的理解是:
油价没上涨,H预计能赚:2L x 100元(过去两年)— 1L x 100元= 100 元
油价上涨:2L X 100元(用过去两年的油价)— 1L x 150元 = 50元