国际顶尖MBA申请交流平台--TOPWAY MBA

标题: [求助] [打印本页]

作者: more96 时间: 2003-3-16 09:35 标题: [求助]

princeton 上有一题没看懂：
A tailor trims 4 feet from opposite edges of a square piece of cloth, and 5 feet from the other two edges. If 120 square feet of cloth remain, what was the length of a side of the original piece of cloth?
The anwer is 20.

作者: sherry 时间: 2003-3-16 09:58

就是正方形切成长方形，一组对边各切4，另一组对边各切5，剩下 (x-8).(x-10)=120，所以 x=20

欢迎光临国际顶尖MBA申请交流平台--TOPWAY MBA (http://forum.topway.org/)