Problem K. 139. (November 2007)
K. 139. Replace each circle between the numbers by the symbol of one of the basic operations so that the result is 100. (Note that brackets are not allowed.)
(6 pont)
Deadline expired on 10 December 2007.
Sorry, the solution is available only in Hungarian. Google translation
Megoldás: 1+2+3+4+5+6+7+8^{.}9=100 vagy 1^{.}2^{.}3+4+5+6+7+8^{.}9=100.
Statistics:
>237 students sent a solution.  
6 points:  226 students. 
5 points:  1 student. 
4 points:  2 students. 
0 point:  4 students. 
Unfair, not evaluated:  4 solutions. 
