take 4 balls as a group, 3 groups - A B Ctvb now,tvbnow,bttvb; o7 ]7 I! Y9 M O' l* [( B
weigh A & B (ex. B heavier)tvb now,tvbnow,bttvb; v+ g, f$ e* y. N* M
then weigh B & C (B & C same weight), p+ Z* o. m; ?4 B) x ?
to find which group has the weight difference and find out is it (A is lighter)公仔箱論壇2 \0 K" W5 y/ V- E7 p7 B
heavier or lighter
; P) _! w# K- M i$ j& P5.39.217.76then measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)公仔箱論壇5 A& |% }' |( T. u* M; }3 R) m
measure E vs F to find which 1 is lighter.... |