210 sec
Chat with our AI personalities
About 35 minutes.
Each hour has 60 minutes so 40 hours = 2400 minutes. Then 2400 minutes + 35 minutes = 2435 minutes So 40 hours and 35 minutes = 2435 minutes
mph means Miles Per Hour, so 21 miles takes 21/60=.35 hour. Then .35 hour is equal to .35*60=21 minutes. So the final answer is 21 minutes
35 minutes
3 hours 43 minutes.