take 4 balls as a group, 3 groups - A B C
; {# g$ Z: S) i, m+ L' O& p5 |weigh A & B (ex. B heavier); A# R W1 l0 P; z* Z
then weigh B & C (B & C same weight)
; B. _9 U6 V9 y) J5.39.217.76to find which group has the weight difference and find out is it (A is lighter)
0 l; a ]: i/ s8 j" Ltvb now,tvbnow,bttvbheavier or lighter
" h+ _% X3 y5 @2 F _2 W r8 othen measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)6 w" u6 @) r/ R5 P6 E
measure E vs F to find which 1 is lighter.... |
發表於 2006-12-6 04:55 PM
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