Divide 3 groups first.% W' Q: e2 \. @
i.e. 4 x 4 x 4.! R$ T/ Q/ k0 Y+ F r. `
Weight any 2 groups [1st]
! b* J0 Q) D4 G5 f+ _' l, P5 Zthen you will know the heavier ball in which group.
- V& c* j4 q) M4 \6 DWeight any 2 balls in that group [2nd]公仔箱論壇8 z; e2 U' j- w) K4 k
then you will know the heavier ball in which 2 balls.
* p$ o8 T9 x" E4 I4 w K- V2 N公仔箱論壇Repeat again in remainders [3rd]
* J. |# }4 C5 j% xGot the heavier ball. |
發表於 2009-7-2 12:48 PM
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