take out 10 balls and 5 in each side
; P7 G0 {" T! R/ r1 Btvb now,tvbnow,bttvbif 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.
: G$ i7 E9 w0 n公仔箱論壇tvb now,tvbnow,bttvb2 H3 M) h$ D/ R w6 |( M5 j
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.tvb now,tvbnow,bttvb/ y6 C) y9 f& b T. b
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.; A4 }* A& ], W# @
; [& E) g4 Y1 c# K% E2 p! {tvb now,tvbnow,bttvbused 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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