Art of Problem Solving

1991 OIM Problems/Problem 3: Difference between revisions

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== Solution ==
== Solution ==
{{solution}}
{{alternate solutions}}


== See also ==
== See also ==
https://www.oma.org.ar/enunciados/ibe6.htm
https://www.oma.org.ar/enunciados/ibe6.htm

Revision as of 16:57, 13 December 2023

Problem

Let $f$ be an increasing function defined for every real number $x$, $0 \le x \le 1$, such that:

a. $f(0) = 0$

b. $f(x/3) = f(x)/2$

c. $f(1-x) = 1 - f(x)$

Find $f(18/1991)$

~translated into English by Tomas Diaz. ~orders@tomasdiaz.com

Solution

Alternate solutions are always welcome. If you have a different, elegant solution to this problem, please add it to this page.

See also

https://www.oma.org.ar/enunciados/ibe6.htm