On a field trip when their bus breaks down 40 miles from the school. A teacher takes 5 of them back to school in her car, travelling at an average speed of 40 miles per hour. the other 5 students start walking towards school at a steady 4 miles per hour. the teacher drops the 5 at school. Then immediately turns around and comes back for the others, again travelling at a steady speed of 40 miles per hour. How far have the students walked by the time the car reaches them?

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I think it would be 8 miles: it would have been 2 hours, so 4 * 2 is 8 miles. :) Hope this helps!

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