Answer:
B. $3 per hour
Step-by-step explanation:
Given that
Cost of air travel = $300
Time of air travel = 6 hours
Cost of bus travel = $150
Time of bus travel = 56 hours
Therefore, the extra amount paid to travel by air is
Cost of air travel - cost of bus travel
= 300 - 150
= $150.
Also, the extra time saved from air travel is
Time of bus travel - time of air travel
Given as
56 - 6
= 50 hours
Thus,
The minimum value of one's time = (extra Cost paid) ÷ (Time saved)
= $150 ÷ 50 hours
= $3 per hour