perplexus.info :: Just Math : Sum Numbers, Get Even (Digits)?

Sum Numbers, Get Even (Digits)? (Posted on 2007-08-15)

P is a 17 digit positive integer and Q is obtained by writing the digits of P backwards. If neither P nor Q has leading zeroes, can P+Q include no even digits?

See The Solution Submitted by K Sengupta

Rating: 4.0000 (3 votes)

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re: solution

| Comment 2 of 5 |

(In reply to solution by Daniel)

But what if there's a carry from the 10th + 8th digit total?

Posted by Charlie on 2007-08-15 11:34:00

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