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标题: GWD-30-10 [打印本页]

作者: sinorachels    时间: 2008-8-23 16:53     标题: GWD-30-10

THX!

Q10:

$10,000 is deposited in a certain account that pays r percent annual interest compounded annually, the amount D(t), in dollars, that the deposit will grow to in t years is given by D(t) = 10,000 {1+(r/100)}t.  What amount will the deposit grow to in 3 years?

(1)     D(t) = 11,000

(2)    r =10

                  

A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.

B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.

C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.

D. EACH statement ALONE is sufficient.

E. Statements (1) and (2) TOGETHER are NOT sufficient.


作者: barmecider    时间: 2008-8-23 21:56

这道题似乎以前就有过争议。

我记得好像是说(1)应为D(0)=11000

这样就选C


作者: sinorachels    时间: 2008-8-24 15:45

感谢楼主,一块石头总算是落地了。
作者: quejingui77    时间: 2008-8-25 06:33

可是D(0)怎么能等于11000呢,应该是D(1)还差不多吧。
作者: tulipmontreals    时间: 2008-8-27 06:33

I think the answer is B.

Since we can get a equation of  D(t)=10,000*(1.1)^t from (2),then we can know the answer of D(3)=10000*1.1^3

So I think the correct answer is B.






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