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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Full Explanation to Puzzle Answer

Comment 24 of 24 |

(In reply to Answer by K Sengupta)

The given problem indicates that the digits are at least up to O in a number base system, Let the base of the said system be b.

Then, the digits of base b system are:

0,1,2,3,.....,8,9, A,B,C,......, M,N,O,.....

There are at least 25 digits, so the base b>=26

We now observe that, in base b:

The digit appearing immediately before O is N.

Consequently, the required value of x is N.

Posted by K Sengupta on 2022-08-01 22:40:21

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