June 15, 2021 10:58 am
Topic starter
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Runners X and Y started an 18-mile race at the same time. Runner X completed the course in 6 hours, and Runner Y finished 2 hours earlier.
Runner Y ran an average of how many miles per hour faster than Runner X?
A) 1 B) C)
D) 3 E)
1 Answer
0
June 15, 2021 10:58 am
Topic starter
Make a rate pie for both Runner X and Runner Y. Runner X goes the 18-mile distance in 6 hours, so the speed is 18/6=3 miles per hour. Runner Y finished 2 hours earlier, in 4 hours, so the rate is miles per hour. Finally,
which is (B).