take 4 balls as a group, 3 groups - A B C Q! q3 C/ e0 w$ A4 |1 O" S
weigh A & B (ex. B heavier)tvb now,tvbnow,bttvb2 Y& b. V3 l) S( H S
then weigh B & C (B & C same weight), U0 p9 P0 C* g5 n+ N7 ^9 s
to find which group has the weight difference and find out is it (A is lighter)
) Q+ y8 L4 F" Kheavier or lighter0 J9 L. w4 f) S" k. a
then measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)tvb now,tvbnow,bttvb( V: y9 h: E) ?& Y1 F
measure E vs F to find which 1 is lighter.... |
發表於 2006-12-6 04:55 PM
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