康MM的公式正确, 3次只能称12个球,而4次能称39个球.

来源: Blue_Diamond 于 2010-05-02 09:49:20 [] [旧帖] [给我悄悄话] 阅读数 : (21 bytes)
回答: 用天平称39个乒乓球 由 Blue_Diamond 于 2010-05-01 21:01:19

并指出它是过轻或过重.

所有跟帖： 

• 3 times are enough for 13 balls -jinjing- ♀ 给 jinjing 发送悄悄话 (263 bytes) () 05/02/2010 postreply 12:30:37

• 回复：3 times are enough for 13 balls -wushuihe- ♂ 给 wushuihe 发送悄悄话 (93 bytes) () 05/02/2010 postreply 15:39:14

• not big deal,careless,3 times are enough for 13 balls -jinjing- ♀ 给 jinjing 发送悄悄话 (273 bytes) () 05/02/2010 postreply 18:03:21

• 回复：not big deal,careless,3 times are enough for 13 balls -wushuihe- ♂ 给 wushuihe 发送悄悄话 (25 bytes) () 05/03/2010 postreply 01:52:46

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