今天上午模考PR2002CAT中数学唯一的错题

twinhead

没有数学概念,基本上是阅读和理解的问题,请大家一起讨论一下:
DS
If the market value of a car was $6,000 exactly 3 years ago, what is its current market value?
(1)Starting at the time of purchase, the market value of the car depreciated by 20 percent of its purchase per year.
(2)The current market value of a car manufactured in the same year is $2,400.

BTWR数学部分到底总分多少分?我是错1题,剩余25分钟,怎么才47分?其实并不重要,只是好奇而已.呵呵

tongxun

A 吗？
B中的 a car 太泛了，不是指同一辆车。
不知道PR摸考中数学总分多少。

cook

Tongxun: You have my vote.

twinhead

不是car这个概念的问题.按PR提供的答案,应该是market value概念的purchase和manufacture这两个概念不同.
答案是E
总觉得PR的一些表述有失严密,包括前面的那道求房屋体积的题.

cook

Ok, according to the answer your supplied ,that means it is impossible to know the market value if we don't know the purchase price.
I think I am right now, ?

andrewcan

it can only be that MV is different from PV. if the answer is E.

May I ask what is PR2002CAT? Princeton?

tongxun

普林斯顿2002GMAT计算机考试模拟题。在咱们的资料订购里有的卖。

brigittew

1)Starting at the time of purchase, the market value of the car depreciated by 20 percent of its purchase per year.
我认为，后半句的理解有问题，汽车的市值每年在其购买价的基础上贬值20%，那么除当年外，以后每年的市值不变？
另外，我发现PRMATH 部分有时给出的答案是错误的，我碰见过2次，

Stella

In my view, statement 1 means the car has 5 years of useful life.  It means the car depreciates at purchare price/5 every year.  So statement 1 in not sufficient.  I agree with the answer E.

BTW, I think PR is very lousy, at least compared with KP.  The answers and explainations are obscure and hasty sometimes.  The score is also strange.  I've ever got 50 in math part with 3 wrong questions( but not within first 10 questions, I heard that it's important to get the first 10 right).