take out 10 balls and 5 in each side公仔箱論壇+ t5 l9 w* O( X: K8 J3 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.
. X G1 Z% A v% M5.39.217.77:8898
1 n; n4 o7 q0 O# G8 b, _) h. Z% e6 Ytvb now,tvbnow,bttvbif 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.
9 m6 b3 r' @+ W, Dif 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.* u+ l1 _% ?8 d) j" S- P8 u, \
5.39.217.77:8898) g) R7 [/ n; ^, r; d8 ^8 t' o
used less then 1 min to find out the answer.... |
發表於 2007-12-31 05:47 AM
| 
發表於 2008-1-1 08:48 AM
| 
