Mathematics, 23.05.2020 14:58 BossKnight

Sandra tenía cierta cantidad de dinero para el fin de semana. El viernes gasto tres quintas partes del dinero que tenía y el sábado tres séptimas partes de lo que le quedaba. Si al final le quedaron 16 €
a) ¿Cuánto dinero tenía al principio?
b) ¿Cuánto gastó el viernes? c) ¿Cuánto gastó el sábado?

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Sandra tenía cierta cantidad de dinero para el fin de semana. El viernes gasto tres quintas partes d...