take 4 balls as a group, 3 groups - A B C, M2 {3 Y3 b7 Y% K) R
weigh A & B (ex. B heavier)
1 ?9 J) Z' m+ Sthen weigh B & C (B & C same weight) s2 b F3 R& z2 k
to find which group has the weight difference and find out is it (A is lighter)tvb now,tvbnow,bttvb" k h& m6 j- t, Q1 L. ~
heavier or lighter
( c1 C. Y7 w, K z; Dthen measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)
9 Z9 X3 |" y) `) d公仔箱論壇measure E vs F to find which 1 is lighter.... |