take 4 balls as a group, 3 groups - A B C, o* q& @. R: \5 E* j, h
weigh A & B (ex. B heavier)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。* w W6 N: D) b5 z: h/ O
then weigh B & C (B & C same weight)) H0 i! M n/ Z# A* w( _( w
to find which group has the weight difference and find out is it (A is lighter)) ?' K& `3 \. N( A
heavier or lighter
/ A+ d0 T' L, T$ Q公仔箱論壇then measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)
' h3 l, _1 W' W g0 Z$ Rmeasure E vs F to find which 1 is lighter.... |