take 4 balls as a group, 3 groups - A B C
0 y) x8 C) l) ~; v, o! E' Z P. _5.39.217.76weigh A & B (ex. B heavier)
1 s. R9 W: Y& N# j/ Itvb now,tvbnow,bttvbthen weigh B & C (B & C same weight)
7 H" e) M: M4 C- f1 c% ctvb now,tvbnow,bttvbto find which group has the weight difference and find out is it (A is lighter)
k! D& F1 f2 S" ^/ f$ V! T0 GTVBNOW 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 lightertvb now,tvbnow,bttvb* H" {# f4 P- M: }* R4 J
then measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)
& q0 t K% g1 n. ? `tvb now,tvbnow,bttvbmeasure E vs F to find which 1 is lighter.... |