take 4 balls as a group, 3 groups - A B C
7 a! p) ?$ T$ Dweigh A & B (ex. B heavier)www3.tvboxnow.com9 Y* o9 ]% I' V# |% \! O; ]( o
then weigh B & C (B & C same weight)
' Q) T. X1 A: u" o% o# @to find which group has the weight difference and find out is it (A is lighter)tvb now,tvbnow,bttvb$ X/ t$ V5 r2 b* q. I' T* }$ _
heavier or lighter公仔箱論壇1 S! s2 @$ [9 s
then measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)
4 u4 }% k; V& S6 B3 w( rmeasure E vs F to find which 1 is lighter.... |