Question

8h 39min
+ 3h 25min
------------------
h min

Answer 1

12h4min

Explanation:

39 + 25=64

1h=60mins

so 64/60=1 and the remain is 4.

4 is minute and 1 is hour

8 + 3 + 1=12hours

so The Answer is 12hours 4minutes