Divide 3 groups first.# ~/ @! V& O2 F4 y6 t! j9 T
i.e. 4 x 4 x 4.www3.tvboxnow.com$ z Z( W! U& A; ^- F
Weight any 2 groups [1st]
' p* Y6 O4 t3 N公仔箱論壇then you will know the heavier ball in which group.
) `- A9 \+ I) N/ pWeight any 2 balls in that group [2nd]
/ M- a$ S. J( D; F f Kthen you will know the heavier ball in which 2 balls.8 Q; N; f% }+ X) b$ B% K6 u
Repeat again in remainders [3rd]9 x0 B' D& |6 b+ z8 e1 R% \
Got the heavier ball. |
發表於 2009-7-2 12:48 PM
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