take 4 balls as a group, 3 groups - A B C3 p$ Y3 V% N' ] r
weigh A & B (ex. B heavier)5 O! ^ @) d5 U, @
then weigh B & C (B & C same weight)4 F' o' k$ f7 F& @' a) Y
to find which group has the weight difference and find out is it (A is lighter)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。' w6 }! t* d6 K
heavier or lighter
8 }1 }2 ?1 c8 H, n4 K6 m u2 r. H6 JTVBNOW 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。then measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)tvb now,tvbnow,bttvb8 M" J+ }& ^. u4 a. D' G1 _% k
measure E vs F to find which 1 is lighter.... |
發表於 2006-12-6 04:55 PM
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