各位數字的和是等於24
回答 (2)
2008-02-07 7:53 am
✔ 最佳答案
一定不會有1-5所以有
699, 969,996
789, 798, 879, 897, 978, 987
888
2008-02-08 6:29 am
Delete the number:
1+9+9=19
...
5+9+9=23
6+9+8=23
so 699 is right.
Delete:
7+0+0=7
...
7+7+9=23
...
7+8+8=23
So 789,798 is right.
Delete 800-869
870-878
880-887,889
890-896,898,899
So 879,888&897 is right.
Delete 900-959
960-968
970-977,979
980-986,988,989
990-995,997,998,999
So 978,987&996 is right.
Hope I can help U.
1+9+9=19
...
5+9+9=23
6+9+8=23
so 699 is right.
Delete:
7+0+0=7
...
7+7+9=23
...
7+8+8=23
So 789,798 is right.
Delete 800-869
870-878
880-887,889
890-896,898,899
So 879,888&897 is right.
Delete 900-959
960-968
970-977,979
980-986,988,989
990-995,997,998,999
So 978,987&996 is right.
Hope I can help U.
參考: I think it out.
收錄日期: 2021-04-13 15:05:43
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080206000051KK03288