take 4 balls as a group, 3 groups - A B C: z7 y& x% f% a2 S/ K1 [) Q. L
weigh A & B (ex. B heavier)www3.tvboxnow.com: I; \' W6 F& d. J: }+ W: h+ m
then weigh B & C (B & C same weight)www3.tvboxnow.com, U+ B0 A L: }: l5 D6 k
to find which group has the weight difference and find out is it (A is lighter)
- t. c* z2 A0 C. M7 |4 yheavier or lighter
; c) o1 N- P% c7 z, K. q% twww3.tvboxnow.comthen measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF 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。3 q0 ?, [) s- K2 a- D& m! `! ~
measure E vs F to find which 1 is lighter.... |
發表於 2006-12-6 04:55 PM
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