take out 10 balls and 5 in each side
/ {! a% [7 B- R8 O# B9 i# a5.39.217.77:8898if 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.公仔箱論壇6 b& P/ r( [' i
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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.公仔箱論壇 e9 |8 G3 S9 [0 h! c! p
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.3 h P8 r- j- H& M N
) y* l% s* U! P* m: h0 H3 Kused less then 1 min to find out the answer.... |