take 4 balls as a group, 3 groups - A B C
$ e; \3 S+ N7 q, d9 u5.39.217.76weigh A & B (ex. B heavier)
" v6 E( ?7 u2 K5.39.217.76then weigh B & C (B & C same weight). z& r. V0 ^% S# |1 [) }1 C
to find which group has the weight difference and find out is it (A is lighter)5.39.217.765 A+ d$ _6 `7 k& v8 `, Z* J* o. |4 ~
heavier or lighter
/ k9 ?/ O0 k5 S' y f2 p5.39.217.76then measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)
2 U) `8 n9 N/ K3 ^measure E vs F to find which 1 is lighter.... |
發表於 2006-12-6 04:55 PM
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