If you can sell 10 computers for $1400 each or 11 computers for $1300 each, what is the

marginal revenue from 10 to 11 computers?

1. $100

2. $200

3. $300

4. $400

If you can sell 1500 water bottles for $15 each or 2000 water bottles for $14 each, what is the

marginal revenue from 1500 to 2000 water bottles?

1. $4000

2. $4500

3. $5000

4. $5500

If you can sell 10 computers for $1400 each or 11 computers for $1300 each, and the marginal

cost is $1000, what should you do and what is the profit?

1. Sell 10 computers and $3,300

2. Sell 10 computers and $4,000

3. Sell 11 computers and $3,300

4. Sell 11 computers and $4,000

What is true of the profit-maximizing quantity?