divde the 12 balls into 3 sets of 4. 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。1 x1 w* r8 a6 m& ?1 J+ Q! I; p, k
weight any 2 sets.
" q+ k, d% e3 M, D7 @8 a. J公仔箱論壇if the 2 sets are equal, then you know the heavy one is in the third公仔箱論壇+ \+ Y' [0 g+ o
if one of the 2 is heavier, then the heavy one is in that set
: z! l F; j4 I1 F2 cTVBNOW 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。then divide the 4 balls into 2.
+ y& I, o2 v/ _, `9 L a; V- \1 `tvb now,tvbnow,bttvbweigh themtvb now,tvbnow,bttvb3 Y+ F9 a, o! w9 X6 {
and divide the heavier into 1公仔箱論壇0 _! |) j" {$ N* z1 J( U
and weight them.
9 E! }1 |/ t' y# @ \tvb now,tvbnow,bttvb3 x weighing and get the ans. 3 K) y: k( A: S+ b0 k, ~7 s4 [9 ~7 I
in less than 15 secs. |