Suppose That the Units of Variable Input in a Coal-Production

question 61

Multiple Choice

Suppose that the units of variable input in a coal-production process are 1, 2, 3, 4, and 5, and the corresponding total outputs per period are 10, 15, 19, 22, and 24 tons, respectively.The marginal product of the third unit of input is _______ tons per period.

• A) 3
• B) 4
• C) 15
• D) 19

---

Definitions:

Marginal Utility

The additional satisfaction or utility gained by consuming one more unit of a good or service.

Consumer Surplus

The consumer surplus is the gap between what consumers are ready and capable of paying for a good or service and what they actually spend on it.

Marginal Utility

The augmented satisfaction or value someone derives from the consumption of an extra unit of a good or service.

Consumer Surplus

Consumer surplus represents the discrepancy between the total price consumers are prepared and able to spend on a product or service and the actual amount they end up paying.