take out 10 balls and 5 in each side" B1 w; B% H/ r" J! ]
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.9 W$ k) b6 k6 C* h: q
9 L+ W! ^$ U' C* j3 q$ V' U0 O# m, d* X公仔箱論壇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.公仔箱論壇* O5 ?' D; ^- A6 u; m3 J
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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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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