take out 10 balls and 5 in each side4 J4 k. k6 w2 _' v2 P
if both side balance mean the other 2 balls one of them must be the heavy one then just take them to weight will find out which one is heavier.公仔箱論壇" D# ?- A. ~* [1 M) I. l& s
5.39.217.77:88989 g0 A( ~7 Z$ h7 v
if the heavy ball is inside the 10 balls, take out 4 balls from the heavier side which had 5 balls to weight 2 balls in each side.5.39.217.77:88989 ^. f+ S" x; v6 q# p; M
if both side balance, which mean the one left is heavy one if not, just take the heavier side to weight will find out which one is the heaviest one.
' T( Z4 L# ~5 z& Z) ltvb now,tvbnow,bttvb9 U5 ~# i! p/ L+ r6 A
used less then 1 min to find out the answer.... |
發表於 2007-12-31 05:47 AM
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發表於 2008-1-1 08:48 AM
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