Palmer's Average Running Speed Is 4 Kilometers Per Hour Faster

question 6

Multiple Choice

Palmer's average running speed is 4 kilometers per hour faster than his walking speed. If Palmer can run around a 40-kilometer course in 4 hours, how many hours would it take for Palmer to walk the same course? (Round your answer to two decimal places.)

• A) 7.75 h
• B) 5.59 h
• C) 6.67 h
• D) 11.53 h
• E) 7.21 h

---

Definitions:

Laffer Curve

A theoretical representation of the relationship between tax rates and government revenue, suggesting there is an optimal tax rate that maximizes revenue.

Tax Revenue

The financial earnings that governments obtain through taxation.

Price Ceiling

A legally imposed limit on the price that can be charged for a good or service.

Shortage

A situation in which the demand for a product or service exceeds its supply in a market.