divde the 12 balls into 3 sets of 4. tvb now,tvbnow,bttvb2 k+ t5 B9 K- Q+ z% u% N% w
weight any 2 sets.
5 `' H! p7 I( O公仔箱論壇if the 2 sets are equal, then you know the heavy one is in the thirdTVBNOW 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。; Z; y* R- q% i) h' d7 I
if one of the 2 is heavier, then the heavy one is in that set
% Z$ u4 ?$ [6 {5.39.217.77:8898then divide the 4 balls into 2.: x: a% Z# Y8 L. p. U$ ]& M" B
weigh them7 G( h/ L( ?# C# L
and divide the heavier into 1公仔箱論壇3 y! b; V4 C8 ?& ?8 w
and weight them.
) ]! Y# R: I, w3 X2 c0 P6 o. 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。3 x weighing and get the ans. 4 B/ W' @+ W* S
in less than 15 secs. |