鑰匙 - 拼圖
By Hardy
at 2009-09-03T06:29
at 2009-09-03T06:29
Table of Contents
眼前有三個已上鎖的盒子
分別裝著1,3,5把鑰匙
加上手中持有1把鑰匙
旁邊有一扇上鎖的門
已知盒子和門的鑰匙一定在這10把內
請問能夠打開門的機率為何?
--
分別裝著1,3,5把鑰匙
加上手中持有1把鑰匙
旁邊有一扇上鎖的門
已知盒子和門的鑰匙一定在這10把內
請問能夠打開門的機率為何?
--
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拼圖
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