take 4 balls as a group, 3 groups - A B C
: E, i& L6 V0 I+ Q4 p. S, W/ wweigh A & B (ex. B heavier)
3 d8 E2 l. ?6 s8 o& ptvb now,tvbnow,bttvbthen weigh B & C (B & C same weight). W+ I8 h8 Z# K
to find which group has the weight difference and find out is it (A is lighter)
0 G" W! |- S: {8 N; j- Yheavier or lighterTVBNOW 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。: d2 P# {/ f& H
then measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)
' G, X& D: ^8 P# \" D6 ?4 Utvb now,tvbnow,bttvbmeasure E vs F to find which 1 is lighter.... |