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Wiki User
1.5 minutes or 90 seconds. which is 1/40 of an hour. mph means exactly what it stands for "miles per hour" so you take 1/40 which gets you to 90 seconds.
At 20 mph how long would it take to drive one mile?
About 51 seconds.
2 minutes.
about 3 minutes
1 minute
16.51 seconds.
About 65 seconds.
5.5 minutes
55.38 seconds.
About 1 minute 12 seconds.
1/80 hours.
About 1 minute 42 seconds.