take out 10 balls and 5 in each side
$ }" w, |) ~; x4 \! D9 Z- D4 q3 uif 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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: H3 t' c C2 F5 o# x& X4 ~tvb 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 E" P7 K3 K: A3 `
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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2 l) p7 U3 ^4 u: zused 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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