take 4 balls as a group, 3 groups - A B C' R; _3 h! i3 E0 c
weigh A & B (ex. B heavier)
; t4 S8 Y+ i4 r" Jthen weigh B & C (B & C same weight)tvb now,tvbnow,bttvb9 z* e) M! T5 v2 k# R& N g
to find which group has the weight difference and find out is it (A is lighter)5.39.217.761 _6 S `# Q' `, m7 C* ]. t% W
heavier or lighter
1 l2 ?! v8 k. J# x4 v# g/ stvb now,tvbnow,bttvbthen measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)) w# b8 U) Z* c7 i
measure E vs F to find which 1 is lighter.... |
發表於 2006-12-6 04:55 PM
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