GWD 30的两道数学题

zhongyaya · 发表于 2010-10-27 13:01:55

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
这题选D~对于条件1我有点疑问，这里也没说t=3 啊~为什么可以选呢？

Q25:
For a certain race, 3 teams were allowed to enter 3 members each.A team earned 6 – n points whenever one of its members finished in nth place, where 1 ≤ n ≤ 5.There were no ties, disqualifications, orwithdrawals.If no team earned more than 6 points, what is the least possible score a team could have earned?

A.0
B.1
C.2
D.3
E.4
这题正确答案依然选D~
请筒子们帮助解答~谢谢啦~

Q25:
For a certain race, 3 teams were allowed to enter 3 members each.A team earned 6 – n points whenever one of its members finished in nth place, where 1 ≤ n ≤ 5.There were no ties, disqualifications, orwithdrawals.If no team earned more than 6 points, what is the least possible score a team could have earned?

A.0
B.1
C.2
D.3
E.4
这题正确答案依然选D~
请筒子们帮助解答~谢谢啦~

zhongyaya · 发表于 2010-10-27 13:12:58

顶~

zhongyaya · 发表于 2010-10-27 19:08:11

继续顶~

yexuu · 发表于 2010-10-27 19:26:09

1、应该是题目有问题吧，估计是D（1）=11000
2、这道题楼主是看不懂题目还是什么问题，其实就是一个赛跑，3组，每组三人，共9人，前五名有分数，分数分别为1，2，3，4，5，没有一个队超过6分，要求得分比较少的那队的最低得分，反正得分的总和是一定的，那就假设有两个队得到6分，那另一队自然就是最少的，分数为（1+2+3+4+5)-12=3，所以选d

zhongyaya · 发表于 2010-10-27 19:48:55

额~第二题的确是题目没看清~谢谢楼上了~
再抽自己一个嘴巴子~下周就要考了还犯这等低级错误

GWD 30的两道数学题

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