Divide the 12 balls into 4 groups of 3's.) N# p& c, _& u3 W/ d6 z; g8 f
Weigh group 1 & 2
. ?5 ^" m1 K* O( H3 {then weigh group 2 & 3
( [2 h$ b0 z1 ~2 \& @: a' S公仔箱論壇If the results are Equal & Equal, it means the ball with the different weight is in group 4.2 ~) T" N R3 i+ [; k# y( B
If the results are Equal & Unequal, it means the ball is in group 3.
0 s% e, [& T% p0 w, Wtvb now,tvbnow,bttvbIf the results are Unequal & Equal, it means the ball is in group 1.
+ s6 h; ]2 y0 ^1 \' ^- w5 k0 E/ mtvb now,tvbnow,bttvbIf the results are Unequal & Unequal, it means the ball is in group 2.
1 J! O4 _) n8 x9 I( n4 `2 zwww2.tvboxnow.com4 Y8 y$ O3 ^4 m3 U* u" |
Once you determine the group that contains the ball.
7 P; ^4 e% ~1 g& D0 \# j7 S公仔箱論壇Simply weigh two of the balls |