perplexus.info :: Just Math : Digit Reversal Puzzle

Digit Reversal Puzzle (Posted on 2015-07-27)

N is a 4-digit positive integer, whose last digit is not zero, and which does not contain any leading zeros. R(N) is the four-digit integer obtained by reversing the digits of N; for example, R(4386) = 6834

Determine all values of N that satisfy: R(N) = 4N + 3

Submitted by K Sengupta

Rating: 5.0000 (1 votes)

Solution: (Hide)

N=1997 is the only possible solution.
For an explanation, refer to the solution submitted by Ady TZIDON in this location.

Comments: ( You must be logged in to post comments.)

Subject	Author	Date
a short explanation	Ady TZIDON	2015-07-27 09:08:39
Answer only	Ady TZIDON	2015-07-27 08:54:38

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