作者little444 (胖妞妞胖)
看板GMAT
標題[計量] 兩題資料充分性
時間Mon Dec 31 19:13:53 2007
1. A rectangular lot 120 feet long by 80 feet wide
is to be partitioned into 10 rectangular gardens. If
each of the gardens will have the same dimensions.
How many feet og partitioning will be needed to
seperate the gardens?
(1) One of the dimensions of each garden is to be 40
feet.
(2) One of the dimensions of each garden is to be 24
feet.
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答案 D
我認為只有的一個條件成立而已
第二個為什麼也成立？
﹍﹍﹍﹍﹍﹍﹍﹍﹍﹍﹍﹍﹍﹍﹍﹍﹍﹍﹍﹍﹍﹍﹍﹍﹍﹍﹍﹍﹍﹍
2 What is the value of x?
(1) x^4+x^2+1=1/x^4+x^2+1
(2) x^3+x^2=0
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答案 a
可是第二個答案不是可以算出 ｘ=-１
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◆ From: 140.129.23.2
1F：推 Rfed:2. (2)答案也可以是 0 12/31 20:14
2F：推 micron:1. (2) because 120 is a multiple of 24. Consider a 01/01 21:17
3F：→ micron:garden of 24x40, you'll get 10 gardens. 01/01 21:18