take 4 balls as a group, 3 groups - A B C
( t/ P3 \( p8 o' E9 `2 Xweigh A & B (ex. B heavier)
0 U3 G! P w: R3 Dthen weigh B & C (B & C same weight)
9 v& b; I, X' r& P( A; \to find which group has the weight difference and find out is it (A is lighter)3 ^$ N0 A$ |: s+ S
heavier or lighter
2 B Y5 b" Z; X( A& ?5.39.217.76then measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)
7 ~: y* d+ H+ r; V {# x' Lmeasure E vs F to find which 1 is lighter.... |
發表於 2006-12-6 04:55 PM
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