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Words count (Posted on 2014-03-25) Difficulty: 4 of 5
(D3)How many subsets of (a,b,c, x,y,z) contain no letters neighboring each other in the English ABC (26 letters)?

(D4)How many "words" (i.e, ordered subsets from (a,b,c, x,y,z)) contain no neighboring letters that neighbor each other in the English ABC (26 letters)?

No Solution Yet Submitted by Ady TZIDON    
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  Subject Author Date
re(3): SolutionJer2014-03-26 09:21:08
Some Thoughtsre: solution to part 1; thoughts on part 2tomarken2014-03-26 09:01:02
re(2): solution to part 1; thoughts on part 2Charlie2014-03-26 08:55:42
Hints/Tipsre: solution to part 1; thoughts on part 2Ady TZIDON2014-03-26 02:25:38
Some Thoughtssolution to part 1; thoughts on part 2Charlie2014-03-25 15:41:33
re(2): SolutionCharlie2014-03-25 15:39:29
Solutionre: SolutionJer2014-03-25 15:00:05
SolutionJer2014-03-25 13:09:33
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