[問題] 一題計量

看板GRE (GRE入學考試)作者 (cline)時間17年前 (2007/06/28 17:46), 編輯推噓3(305)
留言8則, 3人參與, 最新討論串1/3 (看更多)
The scale drawing of a certain room is a rectangle 5 inches by 6 inches. If the drawing has the scale 1/4 inch to 1 foot, which of the following give the actual number of square feet of the room ? ANS: 480 -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 61.217.220.193

06/28 18:03, , 1F
[原本面積=(5*6)]*4*4=480
06/28 18:03, 1F

06/28 20:22, , 2F
樓上高人,您可以稍稍解釋一下嗎?XD
06/28 20:22, 2F

06/28 20:22, , 3F
感謝!!:D
06/28 20:22, 3F

06/28 20:31, , 4F
重點在這句the scale 1/4 inch to 1 foot
06/28 20:31, 4F

06/28 20:31, , 5F
所以實際圖上5inch代表5除以1/4=5*4
06/28 20:31, 5F

06/28 20:32, , 6F
以此類推圖上6inch=6*4 feet~~
06/28 20:32, 6F

06/28 20:33, , 7F
故5*6*4*4=480 我想是這樣來的~~
06/28 20:33, 7F

06/28 22:47, , 8F
感謝高人指點~~
06/28 22:47, 8F
文章代碼(AID): #16WuDwd1 (GRE)
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文章代碼(AID): #16WuDwd1 (GRE)