take out 10 balls and 5 in each side公仔箱論壇8 X; j7 b) Q7 v; H! t7 X
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.% _% e7 E0 h1 f0 {* g
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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 I0 g5 ?1 l& T4 T, X% Y0 eif 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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: e$ k+ ]/ X5 ?' r+ G' r, ~tvb now,tvbnow,bttvbused less then 1 min to find out the answer.... |