take out 10 balls and 5 in each sidetvb now,tvbnow,bttvb. }: J B* C+ U6 W1 R+ A- t
if both side balance mean the other 2 balls one of them must be the heavy one then just take them to weight will find out which one is heavier.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。; f- ?9 E6 o* _4 H* r0 o; C
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if the heavy ball is inside the 10 balls, take out 4 balls from the heavier side which had 5 balls to weight 2 balls in each side.
; f( R" v T1 }& _1 nif both side balance, which mean the one left is heavy one if not, just take the heavier side to weight will find out which one is the heaviest one.
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used less then 1 min to find out the answer.... |
發表於 2007-12-31 05:47 AM
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發表於 2008-1-1 08:48 AM
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