take 4 balls as a group, 3 groups - A B C
/ f) D0 Y! t. r- V) n# d/ sweigh A & B (ex. B heavier)
" [2 S" U4 l) u& R8 rthen weigh B & C (B & C same weight)- A; {. i4 C$ e) [1 A5 J8 }
to find which group has the weight difference and find out is it (A is lighter): U4 N$ H+ e6 |" D0 W- U( t
heavier or lighter5.39.217.765 ^- p( z, d1 t
then measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)) |6 }# [6 [2 i! k3 |+ m# ~
measure E vs F to find which 1 is lighter.... |
發表於 2006-12-6 04:55 PM
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