TOT 164 1988 Spring Train J1 20 marks in 20 times in school
Source:
April 25, 2020
combinatoricsalgebra
Problem Statement
In January Kolya and Vasya have been assessed at school times and each has been given marks (each being an integer no greater than , with both Kolya and Vasya receiving at least twos on each occasion). Kolya has been given as many fives as Vasya fours, as many fours as Vasya threes, as many threes as Vasya twos and as many twos as Vasya fives. If each has the same average mark , determine how many twos were given to Kolya.(S . Fomin, Leningrad)