divde the 12 balls into 3 sets of 4. tvb now,tvbnow,bttvb. E2 F, t$ q1 [) q# L. r8 X \
weight any 2 sets.
0 D; M! j+ @! `$ _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 the 2 sets are equal, then you know the heavy one is in the third公仔箱論壇4 D& F0 A+ S9 R+ d: w. r
if one of the 2 is heavier, then the heavy one is in that set
& c& c- ^$ n$ f6 U tTVBNOW 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.
: g! y5 K+ b. W- q, p+ \0 ~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。weigh them
4 o: ]7 M( N) p' Sand divide the heavier into 15.39.217.77; \7 l+ y/ j9 I* J" o, L
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。 F9 r7 j r+ \: \ L/ ^, X
3 x weighing and get the ans. 5 O8 y+ m: _ `* C% q
in less than 15 secs. |