Divide the 12 balls into 4 groups of 3's. 6 J0 [7 G) t; T* V5.39.217.76Weigh group 1 & 25.39.217.76" H/ d3 n A7 k- s$ L5 X6 o
then weigh group 2 & 3 7 \. p6 g F8 h- \) D5.39.217.76If the results are Equal & Equal, it means the ball with the different weight is in group 4. 7 H i- ~) }( l/ \7 x% y& P# aIf the results are Equal & Unequal, it means the ball is in group 3. - M# q/ F |; N, c5.39.217.76If the results are Unequal & Equal, it means the ball is in group 1.5.39.217.76( g7 u" t. b) b7 e$ d* a
If the results are Unequal & Unequal, it means the ball is in group 2. 6 O. q$ v6 K# {公仔箱論壇 6 m" I; v1 B* U6 W+ p6 [: E公仔箱論壇Once you determine the group that contains the ball. - v# {$ F2 b2 z' k; b5.39.217.76Simply weigh two of the balls