take 4 balls as a group, 3 groups - A B C
: D! y; X9 d- Q1 aweigh A & B (ex. B heavier)
% i' M. p. p" b% l: L$ _/ Qthen weigh B & C (B & C same weight)6 \* d1 f! [- v; |2 ~) \
to 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。3 b& u( u" l9 n* `% z
heavier or lighter
8 b2 J4 S% t o8 mthen measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)
5 ^2 X9 q& {# n) A, [& htvb now,tvbnow,bttvbmeasure E vs F to find which 1 is lighter.... |
發表於 2006-12-6 04:55 PM
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