take 4 balls as a group, 3 groups - A B Ctvb now,tvbnow,bttvb) T+ E! ]/ d. F% W% }# P
weigh A & B (ex. B heavier)
/ F; P/ o- ^9 e; b' Dtvb now,tvbnow,bttvbthen weigh B & C (B & C same weight)
& J# s" X$ f- m* ?: N2 Ltvb now,tvbnow,bttvbto find which group has the weight difference and find out is it (A is lighter)
- [/ p- W' e: r3 y# k* Theavier or lighter公仔箱論壇9 m" s/ k9 y$ F Y$ `6 U, f9 N2 P
then measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)" X4 C! R8 z8 j% U; y; x K8 b2 z& x
measure E vs F to find which 1 is lighter.... |
發表於 2006-12-6 04:55 PM
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