请教：GMATPrep数学题

yinjihhh · 发表于 2008-5-2 20:46:00

GMATPrep MATH 的一题

For all positve integers m, (m) = 3m when m is odd and (m) =1/2m when m is even, which of the following is equivalent to (9) X (6)

Answers : 81 , 54, 36, 27 ,18

I chose 81.. But answer says 27... I don't think the answer is right...

括号什么意思？？

masonyxm · 发表于 2008-5-2 21:01:00

我也选择81. （）代表一种运算。。。常见的题目，可以理解成f(m)=...

yinjihhh · 发表于 2008-5-2 21:10:00

谢谢

Shirley8023 · 发表于 2008-5-2 23:10:00

是否应当理解为：6x9=54，为even,则(54)=54/2=27

所属分类: GMAT考试