perplexus.info :: Tricks : Keeping it Positive

Keeping it Positive (Posted on 2005-12-29)

x = O - 1

x is a positive integer
solve for x

See The Solution Submitted by tanx

Rating: 4.3333 (6 votes)

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Solution

| Comment 10 of 24 |

o = XI (Roman numerals for 11)

So x = XI - 1 = X = 10

Posted by dopey915 on 2006-01-03 08:29:01

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