take out 10 balls and 5 in each side公仔箱論壇: o; s4 r4 D1 ^$ f/ ~
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.* W* ]4 g! f2 d1 j' l
公仔箱論壇% j2 J$ C$ l! L" K: y
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.5.39.217.764 n, s0 H* B$ P$ [0 g
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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* ? k: F/ A1 \. _tvb now,tvbnow,bttvbused less then 1 min to find out the answer.... |