The speed limit on a highway is 65 miles per hour. A driver wants to travel 487 miles along the highway in the next 9.8 hours. What is the longest span of rest time available to the driver to complete this journey without ever exceeding the speed limit?

Question

anonymous · Answer

487mi/9.8hours = 49.6939 mph, <- that would be average speed
487mi/65 mph = 7.4923 hours of travel time
9.8 hours - 7.4923 hours = 2.308

anonymous · Answer

2.308 hours' .-. there's no edit button?