Question

2 hr 47 min 50 s
+ 3 hr 34 min 45 s

Answer 1

6 hours, 21 min, 35 sec

Explanation:

hours: 2+3=5 hours

minutes: 47+34= 81 minutes= 80-60(one hour)=20 min leftover

seconds: 50+45=95 sec= 95-60(one min)= 35 sec leftover

6 hours, 21 min, 35 sec