Answer:
10 hours!
Step-by-step explanation:
The first thing we should to is to convert the CST time to PST. '
We know that CST is 6 hours behind the coordinated universal time (UTC) and PST is eight hours behind the coordinated universal time.
Therefore, CST is 2 hours ahead of PST. That is to say, 11:00 am CST = 9:00 am PST.
Then, if the object departed at 9:00am and arrived at 7:00pm PST, then the total travel time is: 10 hours!
