The time taken by Kamal's family to drive on the second day is 6.45 hours.
What is speed?
Speed is defined as the ratio of the time it takes for a body to cross a distance to the time it takes.
The time is calculated as:-
For 4 hours of driving at an average speed of 60 miles per hour, the distance covered is,
d = 60 x 4 = 240miles
Miles remaining for the second day is,
627 - 240 = 387 miles
Time taken to cover 387 miles second day is,
T = 387 / 60 = 6.45 hours
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