take 4 balls as a group, 3 groups - A B C' X. ?* P. Z( R5 ~
weigh A & B (ex. B heavier)公仔箱論壇6 j- x% Y7 O! [1 b0 G8 [
then weigh B & C (B & C same weight)公仔箱論壇3 v$ y) G. O/ S% F g
to find which group has the weight difference and find out is it (A is lighter)
7 G. X; i. [ T: F9 b7 ~" {公仔箱論壇heavier or lighter公仔箱論壇' e: g( S7 U7 X+ ?2 O7 f+ B; m
then measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)
$ D' O S* R' K, w4 Otvb 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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