math
posted by Sandi on .
Where K is a constant to be determined. If it took Ian 45 minutes to exit the stadium when there were 5,000 people who drove and 1,500 people who took public transportation, how much time will it take Ian to exit if there are 12,500 people who drove and 4,00 who took public transportation? Round your answer to the nearest minute.
a. 90 minutes
b. 150 minutes
c. 42 minutes
d. 48 minutes

Instead of posting it again, read what you posted. It is incomplete. What is K and what does it have to do with the problem. We do not know the ratio of speeds for walking or taking the bus.