take out 10 balls and 5 in each side w0 u |2 a1 `, E- S3 R
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.
4 v$ t% i& G2 h: w, Vif 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.% ]0 U3 Y4 Z, y, K$ [4 a, l3 f
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