Mathematical and Physical Journal
for High Schools
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Problem B. 4792. (April 2016)

B. 4792. Is it true that by deleting infinitely many appropriate digits out of the decimal representation of any positive irrational number, we can always get back the original number?

(5 pont)

Deadline expired on May 10, 2016.


Statistics:

84 students sent a solution.
5 points:51 students.
4 points:7 students.
3 points:19 students.
2 points:1 student.
1 point:2 students.
0 point:4 students.

Problems in Mathematics of KöMaL, April 2016