take out 10 balls and 5 in each side4 D6 M5 ^; H7 ?! N, \9 l+ @
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.3 H' c- U) a% t. l+ U0 C7 K$ ?! y
' E* w" O& X% N* m$ Otvb now,tvbnow,bttvbif 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.
/ _2 I+ t; X) |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.tvb now,tvbnow,bttvb: y5 M$ q5 r1 U, K$ ~
tvb now,tvbnow,bttvb: A. b7 d( n( J$ o) v
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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