Problem B. 4679. (January 2015)
B. 4679. Prove that among any 39 consecutive natural numbers there is a number in which the sum of the digits is divisible by 11.
(3 pont)
Deadline expired on February 10, 2015.
Statistics:
104 students sent a solution. 3 points: 77 students. 2 points: 10 students. 1 point: 9 students. 0 point: 8 students.
Problems in Mathematics of KöMaL, January 2015