take 4 balls as a group, 3 groups - A B C2 x4 J! L. C5 q& |3 ]7 |
weigh A & B (ex. B heavier)/ z# h @4 w, O4 |7 y
then weigh B & C (B & C same weight)
) O1 x1 v: e5 c$ ^TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。to find which group has the weight difference and find out is it (A is lighter)' }- d* O' o( t. `0 @! @0 {
heavier or lighter Q8 Y) r& j* ~6 `6 }6 g5 o- a
then measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)) P' }3 Z% S- m! C& R
measure E vs F to find which 1 is lighter.... |
發表於 2006-12-6 04:55 PM
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