formula:
obreros---------------dias-----------horas---------obra
a---------------------------b---------------c ---------------d
e-----------------------------f--------------g-----------------h
a.b.c.h=e.f.g.d
____________________________________________________________
obreros---------------dias------------------obra
8--------------------------3----------------------72
6--------------------------x---------------------90
8.3.90=6.x.72
2160=432x
x=
x=5
se van a tardar 5 días
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formula:
obreros---------------dias-----------horas---------obra
a---------------------------b---------------c ---------------d
e-----------------------------f--------------g-----------------h
a.b.c.h=e.f.g.d
____________________________________________________________
obreros---------------dias------------------obra
8--------------------------3----------------------72
6--------------------------x---------------------90
8.3.90=6.x.72
2160=432x
x=
x=5
se van a tardar 5 días