take 4 balls as a group, 3 groups - A B C) C1 I m0 m) J2 d( }/ b
weigh A & B (ex. B heavier)
1 G' e d* l0 U% P8 P5.39.217.77then weigh B & C (B & C same weight)5.39.217.77; T1 N) @0 t$ V/ a) N( P- V
to find which group has the weight difference and find out is it (A is lighter)
) P7 I( e; f0 a% f; ]: Zheavier or lighter
+ r f/ T3 }* ]then measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)
5 o0 S( ]( x" X3 m公仔箱論壇measure E vs F to find which 1 is lighter.... |
發表於 2006-12-6 04:55 PM
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