1200 minutes or 72000 seconds
It will take: 20/4 = 5 hours
Five hours.
60 mins=1 hour 60x2=120 mins=2 hours 60 can't go into 20 mins, so it's 2 hours and 20 minutes (2 hr & 20 mins)
Approximately 11.3 hours... or 11 hours 20 minutes.
60 minutes = 1 hour → 20 minutes/lb x 20 lb = 400 minutes = 400 ÷ 60 minutes = 6 hours 40 minutes. [Cooking time would be 7 hours, as an extra 20 mins is [usually] added.]
If you are referring to how long it takes to fly, it takes approximately 20 hours.
It will take: 20/4 = 5 hours
quite a long time...
3 hours 20 minutes.
3 hours and 20 Min. 3 hours and 20 Min.
20 Hours
About 20 hours
20 hours
18-20 hours
20 hours
20 hours
400 ÷ 20 = 20 hours (though it is unlikely that the speed would be constant!)