take 4 balls as a group, 3 groups - A B C) G+ m/ B' O1 W6 t J, }# y1 D: Z
weigh A & B (ex. B heavier)
0 Z, c0 t# P7 ]' ?/ A% ~% w! Mthen weigh B & C (B & C same weight)* z, C4 c' V( Y, v# o/ k
to find which group has the weight difference and find out is it (A is lighter)( a) b4 j6 [% \& ?
heavier or lighter4 s/ P+ W1 u2 R
then measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)公仔箱論壇) v3 M7 E+ b, c0 l p( o7 Q
measure E vs F to find which 1 is lighter.... |
發表於 2006-12-6 04:55 PM
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