Question

how much seconds =3 hour 45 minutes​

Answer 1

Answer:

13,500 second.

Step-by-step explanation:

3 hours=3×60×60=10800 sec.

45 minutes =45×60=2700 sec.

hence,

3 hours 45 minutes = 10800+2700=13,500 sec.

Answer 2

Answer:

1 hour is equal to 3600 sec

1min is equal to 60 sec

3 hour 45 min is equal to 3× 3600+45×60

10800+2700

13500 second