Respuesta:
200
Explicación paso a paso:
* venta = costo + ganancia
280 = 100%x + 40%x
280 = 140x/100
280 = 14x/10
20 = x / 10
200 = x
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Respuesta:
200
Explicación paso a paso:
* venta = costo + ganancia
280 = 100%x + 40%x
280 = 140x/100
280 = 14x/10
20 = x / 10
200 = x