take 4 balls as a group, 3 groups - A B C
; B1 Q7 v9 x2 ~5 jweigh A & B (ex. B heavier)- h9 y* l7 {4 z8 @6 p
then weigh B & C (B & C same weight)
( d: W8 y9 V' H9 m+ a0 h' {, Kto find which group has the weight difference and find out is it (A is lighter)
) g1 G5 L+ N4 fTVBNOW 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。heavier or lighter7 V- o7 T( g9 n
then measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)
: R# G) o Z& C6 gmeasure E vs F to find which 1 is lighter.... |
發表於 2006-12-6 04:55 PM
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