gmatprep 一道题

pipi_wj

1.for all positive integer m,<m>=3m when m is odd and <m>=m/2 when m is even, which of  the following is equivalent to <9>x<6>

81,54,36,27,18

答案是27，怎么算都是81

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2.什么意思都看不懂，谢谢指教。就是practice里讲百科全书的那题。有个图的，凹形的，下面是x长度。

will the 1st 10 volumes of a 20-volume encyclopedia fit upright in the bookrack shown above

(1)x=50 cm

(2)twelve of the volume have an average thickness of 5 cm

选E

[此贴子已经被作者于2006-2-22 11:47:16编辑过]

eSpirit

LZ看不到你贴的题目！