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Mathematics, 03.09.2021 17:40 Leftie500

Un padre compra tres libros A, B y C para sus tres hijos. Sabemos que ha pagado 117 soles tras haberle hecho un descuento del 10% sobre el precio total. Además sabemos que el precio del libro C es el doble que el del libro A y que el libro C es 20 soles más caro que el libro B. ¿Cuánto ha gastado en cada libro?

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Un padre compra tres libros A, B y C para sus tres hijos. Sabemos que ha pagado 117 soles tras haber...
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