wingonwong

take out 10 balls and 5 in each side. W' d2 _' f5 F+ M9 Y  k2 P
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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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.5.39.217.770 y1 {2 F* D9 P8 @
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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, ^% O; W% N; L+ j4 ktvb now,tvbnow,bttvbused less then 1 min to find out the answer....