take out 10 balls and 5 in each side: K3 k( |- c( M9 U1 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.
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7 r4 L4 L' S0 V. K6 O- `4 ?! `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.& y* U1 p" x, W8 S& N* p
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.
- C, U N) P% j, r3 ~tvb now,tvbnow,bttvb+ D7 m% G+ J& v9 S
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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