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GWD24-8 (no post)

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楼主
发表于 2008-7-29 07:46:00 | 只看该作者

GWD24-8 (no post)

8

Can a certain rectangular sheet of glass be positioned on a rectangular tabletop so that it covers the entire tabletop and its edges are parallel to the edges of the tabletop?

(1)   The tabletop is 36 inches wide by 60 inches long.

(2)   The area of one side of the sheet of glass is 2400 square inches.

 


l        Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient

l        Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient

l        BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.

l        EACH statement ALONE is sufficient

l        Statements (1) and (2) TOGETHER are NOT sufficient

這題看沒人有問過 所以應該是我的理解有問題 為何答案不是C而是E呢

(1)與(2)共用則知glass比tabletop大 那兩個的edge不就不能平行了嗎

沙发
发表于 2008-7-29 08:46:00 | 只看该作者

玻璃的长宽不确定,所以无法判断是否能完全覆盖桌子。lz认为呢

板凳
 楼主| 发表于 2008-7-29 11:34:00 | 只看该作者

有道理!!! 真是汗顏 ~

2400 = 10 * 240 = 60 * 40 = 12 * 200 =  etc etc

多謝

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