take out 10 balls and 5 in each side
p; L9 @+ Y5 Y( rif 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.
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& j& I$ e* }0 C5 r, ^. e- X. j5.39.217.76if 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.+ b* j# U$ S" C4 x" p
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.
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_/ y, L7 x% m5 f) q4 M) ^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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