take 4 balls as a group, 3 groups - A B C
, o X: c% @8 w8 V: y( k0 fweigh A & B (ex. B heavier)& e f; N# W. R" z3 l2 b' {3 m
then weigh B & C (B & C same weight)tvb now,tvbnow,bttvb3 ^/ j7 @- R' T5 q
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。) }+ E" r! J. n8 v- x% @
heavier or lighter
6 Y$ M! Y5 g. Rthen measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)
2 Z* i' r4 N3 q6 n. [measure E vs F to find which 1 is lighter.... |
發表於 2006-12-6 04:55 PM
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