Divide the 12 balls into 4 groups of 3's.5.39.217.77:8898% E1 D. ?; |* b3 Q& V" \
Weigh group 1 & 2 / H' |. ]8 K. H- D1 p8 Tthen weigh group 2 & 3 9 Z2 s2 P+ P8 M, `5.39.217.77:8898If the results are Equal & Equal, it means the ball with the different weight is in group 4.5.39.217.77:88982 P/ H+ x( \) B: M' H% h
If the results are Equal & Unequal, it means the ball is in group 3. " [ C; ?) [+ C7 AIf the results are Unequal & Equal, it means the ball is in group 1. R+ E) T: f A: d Y9 yTVBNOW 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。If the results are Unequal & Unequal, it means the ball is in group 2. & c1 z; u/ ]6 C8 v$ p& c公仔箱論壇 ( y- L' X- D1 T) _! |! K* r5.39.217.77:8898Once you determine the group that contains the ball. H0 j; v& { \: {+ QSimply weigh two of the balls