take 4 balls as a group, 3 groups - A B C
5 P7 ^) J7 m( m; s9 K) ytvb now,tvbnow,bttvbweigh A & B (ex. B heavier)公仔箱論壇3 d9 C! L1 `; \* e: ~+ x' E) }
then weigh B & C (B & C same weight)" V% J6 m* B) O
to find which group has the weight difference and find out is it (A is lighter)
( J, Y' `$ Q* c* \5 A; pTVBNOW 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。heavier or lighter
. V4 }8 l i& Z公仔箱論壇then measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)2 P4 V! J- {+ i* C, A9 z' ~
measure E vs F to find which 1 is lighter.... |