Answer:
1200 seconds
Explanation:
Joshua walked on a treadmill= 1/3 of an hour
We have to find the walk of Joshua in seconds
As we know that,
1 hour= 60 minutes
1 minute= 60 seconds
1 hour= 60×60=3600 seconds
Joshua walked on a treadmill=
× 3600 seconds
Joshua walked on a treadmill= 1200 seconds
Hence, the correct answer is 1200 seconds