Divide the 12 balls into 4 groups of 3's.
; D( x5 c" p \8 C) dtvb now,tvbnow,bttvbWeigh group 1 & 25 T2 X: h# A9 Y2 X% h
then weigh group 2 & 3
% W" H7 g+ e/ }1 g: E公仔箱論壇If the results are Equal & Equal, it means the ball with the different weight is in group 4.
* _* d6 O% N# g' O- |! i5 Y' ^0 Z6 b. Fos.tvboxnow.comIf the results are Equal & Unequal, it means the ball is in group 3.
" V: ^2 m% Y, j, D; n F0 qos.tvboxnow.comIf the results are Unequal & Equal, it means the ball is in group 1.
( K' d; |+ U5 j2 C2 R. t8 T4 X; v8 v; e1 RIf the results are Unequal & Unequal, it means the ball is in group 2.os.tvboxnow.com, d2 a- l/ z4 z) h. v# c8 p# ~1 \
tvb now,tvbnow,bttvb4 C) t; E; z' i' V& J$ J( A* t
Once you determine the group that contains the ball.
& p, b& P9 p" E, t; a公仔箱論壇Simply weigh two of the balls |