Divide 3 groups first.公仔箱論壇0 @$ t D7 E& n4 j0 O
i.e. 4 x 4 x 4.
/ L9 n# d# I0 {# {www.tvboxnow.comWeight any 2 groups [1st]' _% z( f3 S. x4 C8 j g- o
then you will know the heavier ball in which group.
2 X4 j7 f4 P* l) Z3 GWeight any 2 balls in that group [2nd]. B; H( s1 m# }# Y/ n8 V! |
then you will know the heavier ball in which 2 balls.公仔箱論壇9 F4 Y3 I/ f1 H, C. Z
Repeat again in remainders [3rd]
2 j" I! |. T! E+ H0 z9 rGot the heavier ball. |
發表於 2009-7-2 12:48 PM
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