Divide the 12 balls into 4 groups of 3's.
, H4 A: ?0 ]8 T1 }- X& AWeigh group 1 & 2公仔箱論壇 Q% l' o- d# ^3 f
then weigh group 2 & 3tvb now,tvbnow,bttvb$ h0 _7 K! ]5 Y& M1 n# P; D
If the results are Equal & Equal, it means the ball with the different weight is in group 4.tvb now,tvbnow,bttvb5 t% Z, x& l" d' h& ^' P" X* t
If the results are Equal & Unequal, it means the ball is in group 3.) y S$ E# t8 x. U5 ~. S8 ^) N
If the results are Unequal & Equal, it means the ball is in group 1.
2 D# a% _1 c- }3 s公仔箱論壇If the results are Unequal & Unequal, it means the ball is in group 2.- E8 ~3 t' N7 S) G
) v) P" p. G; j8 }公仔箱論壇Once you determine the group that contains the ball.tvb now,tvbnow,bttvb7 X7 Z& g# `7 d; x- F
Simply weigh two of the balls |
發表於 2007-11-15 03:54 PM
| 
