take out 10 balls and 5 in each sideos.tvboxnow.com3 k7 _4 j! u' X) x6 q* j2 V
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.7 S" r0 x; D% i6 B, Y% I8 z, D$ }
' g: z6 R# h" |! U4 |% {; H6 S公仔箱論壇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., w) ~, `2 j- {; x- y# b
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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used less then 1 min to find out the answer.... |