Mathematics, 04.03.2021 19:10 gavergan

. La selección de 16 estudiantes de olimpiadas de matemáticas, para sus preparaciones resolvieron 59 problemas. Cada problema fue resuelto solamente por un estudiante, además hay cuatro estudiantes que resolvieron exactamente 1, 2, 3, o 4 problemas, respectivamente. Muestra que algún estudiante resolvió al menos 5 problemas.

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. La selección de 16 estudiantes de olimpiadas de matemáticas, para sus preparaciones resolvieron 59...