Answer:
1) She left Colorado at 1:45pm on Tuesday
2) Time in Nebraska = 4:20pm CST
3) Time of arrival in Alabama = 10:00pm CST (Friday)
Explanation:
1) Time of arrival in Illinois = 2:45pm CST (Wednesday)
As Carrie total journey was of 24 hours.
She left Colorado at +2:45 pm CST (Tuesday)
As Colorado is under MST, and MST has difference of -1 (minus one) hour to CST.
Time she left Colorado in MST = 2:45pm CST - 1 hour = 1:45pm MST (Tuesday)
2) Nebraska is under CST and New York is under EST. Where CST has the time difference of -1 hour to EST
So if
Time in New York is = 5:20pm EST
Time in Nebraska is = 5:20pm EST - 1 hour = 4:20pm CST
3) Departure time = 5:00 am EST (Friday)
Total journey = 18 hours
Arrival time in Alabama = 5:00 am EST + 18 hours = 11:00pm EST (Friday)
As Alabama is under CST , and CST has a time difference of -1 hour to EST, then
Arrival time in Alabama = 11:00pm EST - 1 hour = 10:00pm CST