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Ascending numbers! (Posted on 2003-05-25) Difficulty: 3 of 5
Let's call n an ascending number, if it has the following 2 properties:

- The number n has at least 2 digits.
- All digits of n are in ascending order, in base 10.

How many ascending numbers are there?

See The Solution Submitted by Fernando    
Rating: 2.3333 (3 votes)

Comments: ( You must be logged in to post comments.)
  Subject Author Date
re(2): solutionFernando2003-05-26 10:58:21
re(2): solutionCharlie2003-05-25 10:27:16
re: solutionSanjay2003-05-25 07:17:08
SolutionsolutionCharlie2003-05-25 05:26:17
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