take 4 balls as a group, 3 groups - A B C公仔箱論壇$ L% s( I) U' m9 l' V
weigh A & B (ex. B heavier)公仔箱論壇. Q O% u+ H- v: o" {
then weigh B & C (B & C same weight)
; w! ^/ h2 D ^to find which group has the weight difference and find out is it (A is lighter)( x' W' q% \" n: L# B) C: k
heavier or lighter
: K4 h$ D, i. Btvb now,tvbnow,bttvbthen measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)' k- v) d- d* q
measure E vs F to find which 1 is lighter.... |
發表於 2006-12-6 04:55 PM
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