take 4 balls as a group, 3 groups - A B C2 D% e. F6 F& c, M( ], B W
weigh A & B (ex. B heavier)8 I0 f2 Y( ?. e+ c% ?) o [
then weigh B & C (B & C same weight)
9 D/ Z) ?1 A' Q1 F4 a* c+ |, lTVBNOW 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。to find which group has the weight difference and find out is it (A is lighter)
# a/ x5 k: ^7 a/ k; `7 e7 _公仔箱論壇heavier or lighter
1 }! T- q4 h2 I- Y( B; a( v6 Ithen measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)8 q- G. b& ?3 X
measure E vs F to find which 1 is lighter.... |