divde the 12 balls into 3 sets of 4. 公仔箱論壇% _+ N2 S4 ]' {+ _9 A8 K
weight any 2 sets.
4 S, Q6 w( s7 i4 kif the 2 sets are equal, then you know the heavy one is in the third
0 i6 B9 v, ^1 C0 t1 z# ^, ?# V8 ~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。if one of the 2 is heavier, then the heavy one is in that set
5 X( a: J# j& `/ gTVBNOW 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.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。8 R3 w2 l/ k7 i% L2 d$ X/ ^9 T! A: i
weigh them
1 X3 |* \- k; O+ ftvb now,tvbnow,bttvband divide the heavier into 1
8 t0 Y/ v; ` y5 Y C+ V; d: xtvb now,tvbnow,bttvband weight them.公仔箱論壇9 f' V' Z/ e, \: C' F' A: O
3 x weighing and get the ans. tvb now,tvbnow,bttvb+ I. m, C# d! P5 t% v+ F: W9 g/ ~
in less than 15 secs. |