用兩根繩子 計算時間(燒繩測時) - 拼圖
By Anonymous
at 2009-07-08T16:13
at 2009-07-08T16:13
Table of Contents
※ 引述《maxine7 (amberber)》之銘言:
: 今天在EE/CS專業試卷竟然做到一個邏輯推理題,
: 蠻簡單的,
: 而且整張試卷我覺得這題最簡單,
: 其他專業題都寫得二二六六的 冏rz
: 會寫這題我竟然還是覺得蠻高興的...真是個沒志氣的傢伙...
: 好啦,題目來了:
: 有兩根繩子,皆可以恰好燃燒一個小時的時間,
: 他們的長度不同,材質也不均勻,
: 有些段燒得快、有些段燒得慢。
: 請你用這兩根繩子跟一個打火機,
: 測量出45分鐘。
: 我知道很簡單啦,
: 大家就不用寫答案了。
: 這題是寫出來自己自嗨一下,
: 如果各位有機會在專業試卷做到推理題
: 內心偷笑之餘...其他專業題也要會做才是正途啦!
1.將第一條繩子的兩端點燃,
第二條繩子點燃一邊
2.等到第一條繩子燒完以後(30分鐘),點燃第二條繩子的另一端(此時第二條只燒了一半)
3.再等到第二條繩子燒完(15分鐘),就完成了
以下是圖(◎是點燃)
1.
┬◎ ┬◎
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
┴◎ ┴
2.
◎
│1/2 ◎
◎ │
│
│
│
│
┴
(30分鐘)
3.
◎1/2
│
│
│
│
┴◎
(45分鍾)
--
--
: 今天在EE/CS專業試卷竟然做到一個邏輯推理題,
: 蠻簡單的,
: 而且整張試卷我覺得這題最簡單,
: 其他專業題都寫得二二六六的 冏rz
: 會寫這題我竟然還是覺得蠻高興的...真是個沒志氣的傢伙...
: 好啦,題目來了:
: 有兩根繩子,皆可以恰好燃燒一個小時的時間,
: 他們的長度不同,材質也不均勻,
: 有些段燒得快、有些段燒得慢。
: 請你用這兩根繩子跟一個打火機,
: 測量出45分鐘。
: 我知道很簡單啦,
: 大家就不用寫答案了。
: 這題是寫出來自己自嗨一下,
: 如果各位有機會在專業試卷做到推理題
: 內心偷笑之餘...其他專業題也要會做才是正途啦!
1.將第一條繩子的兩端點燃,
第二條繩子點燃一邊
2.等到第一條繩子燒完以後(30分鐘),點燃第二條繩子的另一端(此時第二條只燒了一半)
3.再等到第二條繩子燒完(15分鐘),就完成了
以下是圖(◎是點燃)
1.
┬◎ ┬◎
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
┴◎ ┴
2.
◎
│1/2 ◎
◎ │
│
│
│
│
┴
(30分鐘)
3.
◎1/2
│
│
│
│
┴◎
(45分鍾)
--
--
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