Eldon started practicing piano at 7:45. He played scales for 1/6 of an hour popular songs for 2/5 an hour,

and his solo for 1/4 an hour.

What time did he stopped playing?

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