Difference between revisions of "1992 AIME Problems/Problem 2"

 
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== Problem ==
 
== Problem ==
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A positive integer is called ascending if, in its decimal representation, there are at least two digits and each digit is less than any digit to its right. How many ascending positive integers are there?
  
 
== Solution ==
 
== Solution ==

Revision as of 19:10, 26 July 2006

Problem

A positive integer is called ascending if, in its decimal representation, there are at least two digits and each digit is less than any digit to its right. How many ascending positive integers are there?

Solution

See also

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