By definition, if I drive at 40 miles per hour for one hour (equivalent to 60 minutes) then I have driven for 40 miles; as for the number of miles you drove, I have no idea.
At 60 mph, you can drive 10 miles. At 30 mph, you can drive 5 miles.
About 19 minutes
Five minutes at 60 mph
115.4 minutes.
16 minutes at 60 mph
19.5 miles.
148.75 miles.
54 minutes.
15 minutes.
36 minutes.
About 35 miles.
7.67 miles.