When there is no traffic, it takes Rina 4 hours to get from Boston to New York. She drives at a speed of 60 miles per hour. Her brother wants to get to New York in three hours. Is it possible? How fast would he have to drive?

Question

Natalia Wood

Mathematics

25 November, 10:04

When there is no traffic, it takes Rina 4 hours to get from Boston to New York. She drives at a speed of 60 miles per hour. Her brother wants to get to New York in three hours. Is it possible? How fast would he have to drive?

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Answers (1)

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Harold West · Answer 1

80 mph.

Step-by-step explanation:

The distance = speed * time

= 60*4 = 240 miles.

To travel 240 miles in 3 hours you would have to travel at 240/3 = 80 mph, So it is possible for her brother to do the journey in 3 hours. (Though in the UK he would be breaking the speed limit!).