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Mathematics, 28.11.2019 18:31 bm42400

Ayuda! en el conservatorio de música hay 250 alumnos de los cuales 100 estudian guitarra, 120 violín y 100 trompeta, además 54 estudian guitarra y violín, 40 violín y trompeta, 46 guitarra y trompeta, además 10 personas estudian todos los instrumentos, ¿ cuántas personas no estudian ningono de estos instrumentos?

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