PREP数学题，关于revenue的，谁帮着看看把

沙龙

For Manufacturer M, the cost C of producing x units of its product per month is given by C = kx + t, where C is in dollars and k and t are constants.Last month, if Manufacturer M produced 1,000 units of its product and sold all the units for k + 60 dollars each, what was Manufacturer M's gross profit on the 1,000 units?



(1)Last month, Manufacturer M's revenue from the sale of the 1,000 units was $150,000.



(2)Manufacturer M's cost of producing 500 units in a month is $45,000 less than its cost of producing 1,000 units in a month.



我觉得应该选C啊
条件一可以求出K
然后联合条件二可以求出t
在然后revenue-cost不就是gross profit吗？

山里有只喵

lzhch89 发表于 2011-6-21 03:30
For Manufacturer M, the cost C of producing x units of its product per month is given by C = kx + ...

同意！   答案就是E

lzhch89

For Manufacturer M, the cost C of producing x units of its product per month is given by C = kx + t, where C is in dollars and k and t are constants.Last month, if Manufacturer M produced 1,000 units of its product and sold all the units for k + 60 dollars each, what was Manufacturer M's gross profit on the 1,000 units?



(1)Last month, Manufacturer M's revenue from the sale of the 1,000 units was $150,000.



(2)Manufacturer M's cost of producing 500 units in a month is $45,000 less than its cost of producing 1,000 units in a month.



我觉得应该选C啊
条件一可以求出K
然后联合条件二可以求出t
在然后revenue-cost不就是gross profit吗？

-- by 会员 沙龙 (2011/6/20 20:06:49)

答案是E吗？
我可以解释revenue和gross profit的区别是什么，我学accounting. revenue是不扣除成本之前的盈利是多少。 gross profit是revenue减去直接成本，在这道题里也就是减去它那个所谓的cost。

题目要求1000的gross profit. 1000(k+60)-(1000*k+t),也就是只要是能确定t就能算出来。
条件1,   1000（k+60)=150000  只能确定k   推不出来
条件2，  （500k+t)+45000=1000k+t   也只能确定k   推不出来

1+2也无法确定t的值

我觉得应该是选E吧

不知道答案是什么

小甜菜的宝宝

楼主
prep上面的题目如果不明白
可以用关键词在cd搜索，选择“主题内容”，在寂静板块
这样可以比较快得到答案

嘿嘿这一题我以前也搜过

沙龙

我知道怎么回事了，那个t在等式两边可以约掉的……

要考试了智商反而下降了

MarsTOF

今天做prep遇到这题了 我也错了。。帮顶。。