Divide 3 groups first." }0 u/ o2 Z' e9 ~' f# B. \! W
i.e. 4 x 4 x 4.www2.tvboxnow.com$ F! e. z! {0 s6 @: K
Weight any 2 groups [1st]
2 i/ i4 r& c6 l5 Z& K# B" X( N公仔箱論壇then you will know the heavier ball in which group.
: ]# Z$ t3 C3 ]# W p公仔箱論壇Weight any 2 balls in that group [2nd]
% [' Z! K* v! k) o% c4 g. \: i/ Btvb now,tvbnow,bttvbthen you will know the heavier ball in which 2 balls.
! L W3 n2 I/ e* K. z; ?+ T; ?Repeat again in remainders [3rd]
* j0 W& Q$ J9 A* X. ^0 s, Z4 PGot the heavier ball. |