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1 dia (x+25)
3 dia 2(x+25)
ahora planteando la ecuación
(x+25)+(x)+2(x+25)=275
x+25+x+2x+50=275
4x+75=275
4x=275-75
4x=200
x=200/4
x=50
reemplazas x en cada día
1 día (x+25)=50+25=75
2 día=50
3 día = 2(50+25) =2(75)=150
compruebas: 75+50+150=275