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huh?? How tough is it?TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。; C9 }0 g+ j# b4 B
1/. break it down to 2 section, 6 balls on each side. Put which every section shows lighter away
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% E& X" l9 F% r" J* h5 v2/. Break the more heavy section in to 2 sections again, which is 3 balls on each side. Keep the more heavy side again.tvb now,tvbnow,bttvb; {# I% Q3 J# `* D4 Y% `

6 a, I- ~7 Y: Y! d4 Z, ktvb now,tvbnow,bttvb3/. Pick 2 balls and put them on each side from the remaing 3 balls. If they are equal weight, the ball on the table is the more heavy one, if one side is more heavy than the other, that will be the more heavy one.
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Easy. Tough question? For whom? I did it in 1 minute.