Question 153
$n$ students arrived to the summer camp. Every child (boy or girl) in the camp knows exactly one boy and one girl. Is it possible if
a) $n = 2000$;
b) $n = 2018$.
a) $n = 2000$;
b) $n = 2018$.
MathNet 2018-part-06 — 181 problems (EN–VI) Question 153
Math Olympiad Vault · MathNet 2018-part-06 — 181 problems (EN–VI)