take 4 balls as a group, 3 groups - A B C% T! } Q- L" [# ^/ v. h, E, V/ t+ F
weigh A & B (ex. B heavier)5 g" J) w& [( s) v- X# {4 c" @5 M5 Q
then weigh B & C (B & C same weight)tvb now,tvbnow,bttvb" f7 z( p- c* G% R, }" ^
to find which group has the weight difference and find out is it (A is lighter)
& B7 M4 o9 }3 n- Y# p2 z4 b {3 Y- theavier or lighter
+ O2 E, P! y: F* A, H1 @5.39.217.77:8898then measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)公仔箱論壇8 V8 T. ?2 b' [
measure E vs F to find which 1 is lighter.... |