perplexus.info :: Numbers : Four-Digit Number

Four-Digit Number (Posted on 2003-04-26)

Find a four-digit number with four different digits, that is equal to the number formed by its digits in descending order minus the number formed by its digits in ascending order.

See The Solution Submitted by Ravi Raja

Rating: 3.1667 (6 votes)

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help

| Comment 14 of 15 |

are these kind of problems guess and check or something else

Posted by Billy Bob on 2004-03-19 16:50:05

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