Re: 數字問題 - 猜謎
By Una
at 2009-11-27T23:12
at 2009-11-27T23:12
Table of Contents
(1)
球棒1.05元、球0.05元
兩件商品的價差是1元,也就是扣掉這1元之後兩者價格相等
1.1 - 1 = 0.1 →這0.1必須平分給兩件商品(不平分就會增加或減少價差)
所以說,球棒和球的起點都是0.05元,然後球棒再+1,得到1.05元
(2)
把機器數和成品數同時除以五,得到每1台機器5分鐘可生產一件成品
1台機器花費5分鐘產出1件
2台機器花費5分鐘產出2件
3台機器花費5分鐘產出3件
.
.
.
100台機器花費5分鐘產出100件
(3)
倒推就行了
0.5 * 2(的1次) = 1
意思是半片湖和滿湖差距1天,所以48 - 1 = 47
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By Anonymous
at 2009-11-29T14:48
at 2009-11-29T14:48
By Isla
at 2009-11-30T19:30
at 2009-11-30T19:30
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