take out 10 balls and 5 in each side& {) G# L% I: E* d
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.
7 e; w* u! q1 i4 Y4 jtvb now,tvbnow,bttvb公仔箱論壇" Z. g; |0 b* A; d0 e. {- D
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.+ G+ K' R9 Y/ {! H8 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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" r7 ^" L4 l/ F0 X& |公仔箱論壇used less then 1 min to find out the answer.... |