take 4 balls as a group, 3 groups - A B C M2 _9 ^1 ^ R0 Q: T
weigh A & B (ex. B heavier)公仔箱論壇! Y: L+ a F& M! p
then weigh B & C (B & C same weight)tvb now,tvbnow,bttvb0 `/ D; w3 L% @/ V
to find which group has the weight difference and find out is it (A is lighter)0 k* L2 ?: d; u n2 A1 w, W. ?
heavier or lighter
1 M( {! i3 M3 V4 P* Z2 Sthen measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)% X% V2 ~7 A2 Y
measure E vs F to find which 1 is lighter.... |