take 4 balls as a group, 3 groups - A B C5.39.217.76! d; c: Y! K* H: G
weigh A & B (ex. B heavier)
) \9 J! Y1 r! K1 {1 o: G! @then weigh B & C (B & C same weight)公仔箱論壇& c. g6 V: w, O$ I. Z# \
to find which group has the weight difference and find out is it (A is lighter) f. B' }. Q4 R2 A' {% B
heavier or lighter ]0 y# g$ A0 C
then measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)
/ `- r) b5 }) x1 c, Wtvb now,tvbnow,bttvbmeasure E vs F to find which 1 is lighter.... |