probability

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probability

Postby sindhuraC » Tue Jul 09, 2013 8:15 pm

how many different 3 digit numbers can be made with 3 fours , 4 twos, and 2 threes?
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Re: probability

Postby sumanthbhatt » Mon Aug 26, 2013 3:07 am

sindhuraC wrote:how many different 3 digit numbers can be made with 3 fours , 4 twos, and 2 threes?


26 I think....
1. 222
2. 223
3. 224
4. 232
5. 233
6. 234
7. 242
8. 243
9. 244
10. 322
11. 323
12. 324
13. 332
14. 334 // 333 cant be formed, only two 3s.
15. 342
16. 343
17. 344
18. 422
19. 423
20. 424
21. 432
22. 433
23. 434
24. 442
25. 443.
26. 444
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