take 4 balls as a group, 3 groups - A B C公仔箱論壇; E2 n- j1 C6 d6 h1 u. _
weigh A & B (ex. B heavier)公仔箱論壇6 C. A! z1 n) ]# Y Y
then weigh B & C (B & C same weight)+ V; ~# ^) Y; B" ]
to find which group has the weight difference and find out is it (A is lighter)# `8 T2 N |2 b0 s; e: `, |
heavier or lighter
/ j& e% s, E/ S/ w! ? @( Qthen measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)" _2 l% |- _1 W* Y) v$ A
measure E vs F to find which 1 is lighter.... |