Divide the 12 balls into 4 groups of 3's.tvb now,tvbnow,bttvb) T$ P$ u7 ?5 C& D
Weigh group 1 & 2 4 c" C( w9 \+ o# b# Hthen weigh group 2 & 34 [* f2 W8 k/ A. ~
If the results are Equal & Equal, it means the ball with the different weight is in group 4. + O9 d4 [( R N5 }' O6 t" i8 b5 XIf the results are Equal & Unequal, it means the ball is in group 3.公仔箱論壇, _ A- Z: t* Y6 |3 X6 @. _5 u& f7 r
If the results are Unequal & Equal, it means the ball is in group 1. 6 L$ G* k4 ^/ {5 b2 h: R, o5.39.217.77:8898If the results are Unequal & Unequal, it means the ball is in group 2. 7 s& y/ C# \. O2 j5 W) p8 _ f Y2 n. C0 e& j5 J
Once you determine the group that contains the ball. & v& O5 f ^4 Y j& ?* Dtvb now,tvbnow,bttvbSimply weigh two of the balls