take out 10 balls and 5 in each side
! o; J0 n' Z, L z公仔箱論壇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.tvb now,tvbnow,bttvb# a7 K# Z) b, B3 w! E& ~$ B8 M, w
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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.
* |8 l& f5 i$ B' J" C, M M9 x9 Rif 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.: u& w8 F8 \3 o
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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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