take out 10 balls and 5 in each side5.39.217.76; ?' t# z- ^- p! 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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4 I" M1 z$ d" Pif 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.
2 S+ k0 f" [( i9 K6 G+ ~0 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.
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used less then 1 min to find out the answer.... |