10000 balls

来源: yma16 于 2003-07-03 22:44:00 [] [旧帖] [给我悄悄话] 阅读数 : (217 bytes)

There are 100 boxes of balls of same apprearence. Each box has 100 balls. Each ball is 1 pound in 99 boxes. One box has balls of 11 oz. How do you use a scale one time to find the balls that are lighter than normal?



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• 回复：10000 balls -我对吗？- ♀ 给 我对吗？ 发送悄悄话 (38 bytes) () 07/03/2003 postreply 22:52:00

• 回复：10000 balls -yk0- ♀ 给 yk0 发送悄悄话 (214 bytes) () 07/03/2003 postreply 23:28:00

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