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K. 453. The mean mark on a test was 71 points. However, the teacher made a mistake in assessing one of the problems, so every student was given an extra point. Thus the total mark on the papers changed to 936. How many students took the test?

(6 points)

This problem is for grade 9 students only.

Deadline expired on 10 March 2015.

Statistics on problem K. 453.
 95 students sent a solution. 6 points: 92 students. 5 points: 1 student. Unfair, not evaluated: 2 solutions.

• Problems in Mathematics of KöMaL, February 2015

•  Támogatóink: Morgan Stanley