Divide the 12 balls into 4 groups of 3's.
: H- G( g* q6 q; h# jWeigh group 1 & 2
/ A" \) |' E/ u9 ~+ K5.39.217.76then weigh group 2 & 3公仔箱論壇/ g& p( @4 n/ G. h! ^9 B
If the results are Equal & Equal, it means the ball with the different weight is in group 4.5.39.217.76. K, S+ n) A1 X( ?6 X& }& J4 ^; c
If the results are Equal & Unequal, it means the ball is in group 3.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。0 q$ C, Q q5 b: U$ \- ?" I
If the results are Unequal & Equal, it means the ball is in group 1.# o* @* Y' r3 t# _' C
If the results are Unequal & Unequal, it means the ball is in group 2.
7 o1 i: @8 j7 q" f1 V+ ntvb now,tvbnow,bttvb5.39.217.76; L+ W0 k& L2 _& V q3 a" i- i
Once you determine the group that contains the ball.
( ^- p, H2 t2 \; ]2 O/ {( o, `6 ~Simply weigh two of the balls |