take 4 balls as a group, 3 groups - A B C
7 Q) {. Z8 F' W/ `6 N2 `8 A5.39.217.77:8898weigh A & B (ex. B heavier)
) ]6 N, P3 ~0 L0 U8 J* E2 V9 u# K8 B5.39.217.77:8898then weigh B & C (B & C same weight)
! j7 }; }$ }" y9 uto 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。. G% O: g* v2 P- Q( X- N. m1 x! v
heavier or lighter
/ H! m, i& a- fthen measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)5.39.217.77:8898) d9 n, V! E7 r- |+ G$ `( Q2 Q& Q
measure E vs F to find which 1 is lighter.... |
發表於 2006-12-6 04:55 PM
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