Mathematical and Physical Journal
for High Schools
Issued by the MATFUND Foundation

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Problem C. 1252. (November 2014)

C. 1252. The product of four consecutive odd numbers ends in 9. What may be the digit preceding the 9 in the product?

(Matlap, Cluj)

(5 pont)

Deadline expired on December 10, 2014.

Statistics:

188 students sent a solution.

5 points: 103 students.

4 points: 16 students.

3 points: 17 students.

2 points: 20 students.

1 point: 19 students.

0 point: 3 students.

Unfair, not evaluated: 10 solutionss.

Problems in Mathematics of KöMaL, November 2014

188 students sent a solution.
5 points:	103 students.
4 points:	16 students.
3 points:	17 students.
2 points:	20 students.
1 point:	19 students.
0 point:	3 students.
Unfair, not evaluated:	10 solutionss.