divde the 12 balls into 3 sets of 4.
0 s3 Y6 `. [- m' Z. L1 r3 p4 _6 \. \& p5.39.217.77weight 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。1 V J0 M, M. W# x) B5 r
if the 2 sets are equal, then you know the heavy one is in the third
, O6 O+ Y7 W5 j& c$ j5.39.217.77if one of the 2 is heavier, then the heavy one is in that set3 S' [+ i8 ]) q3 M0 W7 B0 X) q
then divide the 4 balls into 2.
8 k3 A7 E. h" _weigh them5.39.217.77' J2 b) R1 \$ G; b. W: g
and divide the heavier into 1
5 z' U& S/ \- ?+ ]and weight them.
- j9 L& @# c x8 k% A1 {tvb now,tvbnow,bttvb3 x weighing and get the ans.
9 T$ O% B$ p7 I0 _0 l* ]: FTVBNOW 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。in less than 15 secs. |