Julia arrived 20 minutes before the race began. She started right on time. it took her 24 minutes to finish the 6-Kilometer race. She stayed 10 minutes after the race to cool off; then she left. If she arrived at the race at 9:10 A.M., What time was it when she left?

9:10 + 0:54 = 9:64 = 10:04 A.M.

To find out what time Julia left the race, we need to add up the time she spent before, during, and after the race.

First, let's calculate the total time Julia spent before the race:

Julia arrived 20 minutes before the race began.
So, she spent 20 minutes before the race.

Next, let's calculate the total time Julia spent during the race:

Julia took 24 minutes to finish the 6-Kilometer race.

Now, let's calculate the total time Julia spent after the race:

She stayed 10 minutes after the race to cool off.

To find out what time she left the race, we need to add up all these time intervals:

20 minutes (before the race) + 24 minutes (during the race) + 10 minutes (after the race) = 54 minutes.

Since Julia arrived at 9:10 A.M. and spent a total of 54 minutes at the race, we can conclude that she left at:

9:10 A.M. + 54 minutes = 10:04 A.M.

So, Julia left the race at 10:04 A.M.