3 times are enough for 13 balls

3 time is enough for 13 balls:

1)abcde efghi if balance,we can get one from jkl.not balance(left W)
2)ajkl ebcd taking off ei if balance we can get one from ei if left W bad one in ae,also can get it.If left L,one weight one is in bcd,we can get weight.

所有跟帖： 

• 回複：3 times are enough for 13 balls -wushuihe- ♂ (93 bytes) () 05/02/2010 postreply 15:39:14

• not big deal,careless,3 times are enough for 13 balls -jinjing- ♀ (273 bytes) () 05/02/2010 postreply 18:03:21

• 回複：not big deal,careless,3 times are enough for 13 balls -wushuihe- ♂ (25 bytes) () 05/03/2010 postreply 01:52:46