A Manufacturer Sells Watches for $75 Per Unit

question 227

Multiple Choice

A manufacturer sells watches for $75 per unit. The fixed costs related to this product are $10,000 per month, and the variable costs are $55 per unit. This gives a profit function , where r is the revenue per unit and c is the variable cost per unit. If the manufacturer has a profit of zero, how many watches were sold? ​

• A) 1,000
• B) 5,000
• C) 500
• D) 133
• E) 182

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