take 4 balls as a group, 3 groups - A B C5.39.217.77:8898 y: F7 K K* X1 Y
weigh A & B (ex. B heavier)
6 T+ ^# Y& `" i& P; u& b2 athen weigh B & C (B & C same weight)0 h) V5 f0 w& q1 g& d& V6 R0 T
to find which group has the weight difference and find out is it (A is lighter)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。- V7 K6 v* c; t' G* l, u5 A+ K
heavier or lighter
" b" T' z/ e. |" u5 b, I3 K! uthen measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)
) J! N' U6 W |, {tvb now,tvbnow,bttvbmeasure E vs F to find which 1 is lighter.... |