take 4 balls as a group, 3 groups - A B C) G6 X2 y& [: ~. D& W; _0 ~
weigh A & B (ex. B heavier)公仔箱論壇* s& i6 g' s" w/ ?8 t
then weigh B & C (B & C same weight)7 V1 u% \* g4 X/ S
to find which group has the weight difference and find out is it (A is lighter): M# `1 b. ]$ [
heavier or lighter
' C( ?( E6 w' A" {5 E: P8 P" v1 Ytvb now,tvbnow,bttvbthen measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)
, K3 a2 M/ c4 S6 S' x3 R5 X: e. ymeasure E vs F to find which 1 is lighter.... |
發表於 2006-12-6 04:55 PM
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