take out 10 balls and 5 in each side3 H* X; d; p9 q9 y% V7 o
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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, i1 x, d8 Z# i' W% s! y- f `( ~: s5.39.217.76if 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.5.39.217.768 G2 J% \/ a3 K$ }; r
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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! H% v% _" `3 `+ z公仔箱論壇used less then 1 min to find out the answer.... |