Problem B. 4728. (September 2015)
B. 4728. Let \(\displaystyle e\) be the line of one of the edges of a cube. How many lines of the space intersect exactly those out of the 12 lines containing the edges of the cube which are skew relative to \(\displaystyle e\)?
(3 pont)
Deadline expired on 12 October 2015.
Statistics:
209 students sent a solution.  
3 points:  113 students. 
2 points:  32 students. 
1 point:  53 students. 
0 point:  5 students. 
Unfair, not evaluated:  5 solutions. 
Unfair, not evaluated:  1 solution. 
