take out 10 balls and 5 in each side
: W( p4 A8 K' ]' Fif 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.5.39.217.76. `$ p5 W" c! P! L3 p, m
6 n2 w, l$ ]* c, ~6 j2 K5.39.217.76if 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.. I4 z' ^) o) _0 O# J5 n
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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8 h! v; A& _/ ^) Z5 p6 }" K1 j: W" oused 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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