divde the 12 balls into 3 sets of 4.
2 c2 }6 q2 C6 s, ] J公仔箱論壇weight any 2 sets.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。9 S9 A1 Y$ f3 Y: X- K, Q
if the 2 sets are equal, then you know the heavy one is in the third" B5 d, _; ~& _/ `/ R) t$ H
if one of the 2 is heavier, then the heavy one is in that set
& P0 U5 \! X2 T% n4 P# Wthen 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。* K1 E& p* u& n; ~
weigh them
/ p1 f. K$ O7 otvb now,tvbnow,bttvband divide the heavier into 1
0 V6 H' \/ f& M) VTVBNOW 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。and weight them.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。5 w3 Z" S {$ x$ Y
3 x weighing and get the ans.
8 M; n8 T. k6 }* H. T1 d1 vin less than 15 secs. |