take 4 balls as a group, 3 groups - A B C3 N' y) P# a1 A
weigh A & B (ex. B heavier)
! J! ]) [$ _3 J* C0 n2 Cthen weigh B & C (B & C same weight)
/ G, E3 J9 _( t* O) H$ Bto 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。8 _% ]( G0 P3 a5 l
heavier or lighter
' L j3 L7 J8 K! u% g5.39.217.76then measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)
4 P+ Z' |4 A D" b1 l; g5.39.217.76measure E vs F to find which 1 is lighter.... |
發表於 2006-12-6 04:55 PM
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