问3道题

ray1913 · 发表于 2010-1-11 00:59:51

prep软件里的题，答案很蹊跷：

for al positive integers m, (m)=3m when m is odd, (m) = 0.5m when m is even, so what is (9)*(6)
prep说=27

list k consists of 12 consecutive integers, if -4 is the least integer in list k, what is the range of the positive integers in list k?
prep说=6

有牛人帮忙解释下

zhengwendy · 发表于 2010-1-11 15:43:42

我这样理解:
1,(9)*(6)=54(EVEN),SO,根据"(m) = 0.5m when m is even"得(54)=0.5*54=27
2,问题是:the range of the positive integers.从-4开始的12个CONSECUTIVE INTEGERS中的POSITIVE INTEGERS分别是1,2,3,4,5,6,7.SO,THE RANGE IS 7-1=6.

ray1913 · 发表于 2010-1-11 23:31:09

有道理，谢谢

bajisitan · 发表于 2010-1-11 23:57:39

prep软件里的题，答案很蹊跷：

for al positive integers m, (m)=3m when m is odd, (m) = 0.5m when m is even, so what is (9)*(6)
prep说=27

list k consists of 12 consecutive integers, if -4 is the least integer in list k, what is the range of the positive integers in list k?
prep说=6

有牛人帮忙解释下

-- by 会员 ray1913 (2010/1/11 0:59:51)

兄弟，在下不是NN,你的原题有问题，原题是这样的：

for al positive integers m, (m)=3m when m is odd, (m) = 0.5m when m is even, so what is (9)*(6)

A) (81) (B) (54) (C) (36) (D) (27) （E）（18）

因此问题问的是括号里的数字= (9)*(6),so （27）=27*3=81=(9)*(6),二楼的兄弟理解有误，希望不要误导你

ray1913 · 发表于 2010-1-12 22:38:35

en, 四楼的兄弟说的对，刚刚又看了一眼原题，确实是我没抄全题目。

buck911bf · 发表于 2018-9-26 21:21:17

问3道题

所属分类: GMAT考试

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