Answer:
The answer is b as he should order 1045 copies to maximize his profits.
Explanation:
As
[tex]CR=\frac{C_{u} }{C_{o}+C_{u} }[/tex]
So,
Given :
[tex]C_{o} =20-14=6[/tex]
[tex]C_{u} =28-20=8[/tex]
Thus
[tex]CR=\frac{8 }{6+8 }[/tex]
[tex]=57.14\%[/tex]
thus [tex]Q^{*} =Norm.inu(0.5714,1000,250)[/tex]
[tex]=1045.0032[/tex]
≈ [tex]1045[/tex]
Which is option b.