Answer:
Stopped playing at 8:34
Step-by-step explanation:
Let's calculate his practice time in minutes. We know 60 mins = 1 hour
Now,
1/6th of an hour = 1/6 * 60 = 10 minutes
2/5th of an hour = 2/5 * 60 = 24 minutes
1/4th of an hour = 1/4 * 60 = 15 minutes
So, his practice time in total is:
10 + 24 + 15 = 49 minutes.
Now he started at 7:45, so he will end after 49 minutes, that would be:
8:34