The price of an airline ticket from denver to washington, d. c. costs $600. a bus ticket costs $150. traveling by plane takes 6 hours compared with 51 hours by bus. other things constant, an individual would gain by choosing air travel if, and only if, his time were valued at more than

Step-by-step explanation:

Given that the price of an The price of an airline ticket from Denver to Washington, D.C. costs $600. A bus ticket costs $150. Traveling by plane takes 6 hours compared with 51 hours by bus.

Difference in time

Difference in fares

If other things remain the same the time lost is 45 hours and money diference 450 dollars

If each hour is more than dollars, he would gain by using air travel.