RSOHAL wrote:

A television manufacturer produces 600 units of a certain model each month at a cost to the manufacturer of $90 per unit and all of the produced units are sold each month. What is the minimum selling price per unit that will ensure that the monthly profit (revenue from sales minus the manufacturer's cost to produce) on the sales of these units will be at least $42,000?

A$110

B$120

C$140

D$160

E$180

TR - TC = total profitTR = (sell price per item) * (# of items)

TC = (cost price per item) * (# of items)

We need sell price per item, x

600x - (600)(90) = 42,000 600x - 54,000 = 42,000

600x = 96,000

x = 160

Answer D

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