Divide 3 groups first.tvb now,tvbnow,bttvb7 f" J7 l* V0 g1 p/ F' A) P" r8 p
i.e. 4 x 4 x 4.公仔箱論壇% D6 P5 j. f2 r0 _
Weight any 2 groups [1st]
u$ q% s2 c! R, l1 n( A( ctvb now,tvbnow,bttvbthen you will know the heavier ball in which group.7 L$ F/ H9 H9 l1 T8 i S
Weight any 2 balls in that group [2nd]5.39.217.76# ]3 C* P; I7 ?" c" B: R S/ c
then you will know the heavier ball in which 2 balls.5.39.217.763 _4 ?8 o/ V7 [# d
Repeat again in remainders [3rd]7 j: o9 H# f! M' r% i
Got the heavier ball. |
發表於 2009-7-2 12:48 PM
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