take 4 balls as a group, 3 groups - A B C7 t/ G$ `, N' V8 L
weigh A & B (ex. B heavier)* v y" J8 p1 s2 L! x# V
then weigh B & C (B & C same weight)
7 f- \" n8 S2 e0 F5 v5.39.217.76to 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。, d/ k7 x) y/ Y
heavier or lighter
: N7 U# S7 p; j3 M% B5.39.217.76then measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)公仔箱論壇) C4 D0 W1 O+ v" @
measure E vs F to find which 1 is lighter.... |