A CREAM manufacturer produces 200 units of a certain model each month at a cost to the manufacturer of £20 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 production costs) on the sales of these units will be at least £20,000?
Options
A) 100 B) 110 C) 1120 D) 200 E) 220
200(x-20)≥20,000   x-20≥200   x≥220   Answer: Option 220
<result>E</result>
A CREAM manufacturer produces 200 units of a certain model each month at a cost to the manufacturer of £20 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 production costs) on the sales of these units will be at least £20,000?