divde the 12 balls into 3 sets of 4. - \9 F, ~9 y1 S! f W7 q$ c
weight any 2 sets.
% p/ m3 s, v+ H$ G; J6 a: |( ztvb now,tvbnow,bttvbif the 2 sets are equal, then you know the heavy one is in the third
7 B5 ~1 J/ r, ~. ttvb now,tvbnow,bttvbif one of the 2 is heavier, then the heavy one is in that set
9 C2 M0 X4 O* otvb now,tvbnow,bttvbthen divide the 4 balls into 2.5.39.217.77: L: y( A8 z8 u/ f T, B) O0 b
weigh them5.39.217.775 s' p2 ^9 o: v: R
and divide the heavier into 1
+ c+ @' |" ^& U2 }3 d1 `6 e5.39.217.77and weight them.
8 D: v4 W* d$ wTVBNOW 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。3 x weighing and get the ans. 9 [/ w* V% Y# k1 |' s/ W
in less than 15 secs. |