Answer:
The percentage effectiveness o the machine is
%
Step-by-step explanation:
From the question we are told that
The availability of the mixing drum is

Amount of concrete produced per day is

time taken to produce each pound of concrete is

Time taken to set-up the machine is

The time it would take to produce 10 pounds of concrete is mathematically repented as
[This is because it take 50 minutes to
to produce one pound of concrete i.e (50
minutes to produce concrete )]
Hence the equipment effectiveness of the machine is

%