take 4 balls as a group, 3 groups - A B C5.39.217.77:88989 E/ c4 d( j) m7 z) k3 T% v
weigh A & B (ex. B heavier)
! V! \/ P- F" c# m: X* Ethen weigh B & C (B & C same weight)
. V" v& M! O: o2 otvb now,tvbnow,bttvbto find which group has the weight difference and find out is it (A is lighter)
: D, g$ L; ~: ^: n( gtvb now,tvbnow,bttvbheavier or lighter5.39.217.77:8898& i5 g& c) E1 m( X
then measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter), B- O+ l0 Q. j* W4 t) H( Y
measure E vs F to find which 1 is lighter.... |