An athlete runs 4 miles in 28 minutes and then changes pace to run the next 4 miles in 32 minutes. Overall, what is the average time in minutes it takes the athlete to run 1 mile?

Rationale

The athlete's average time to run 1 mile is 7.5 minutes.

The total distance run by the athlete is 8 miles (4 miles + 4 miles) and the total time spent running is 60 minutes (28 minutes + 32 minutes). To find the average time per mile, we divide the total time by the total distance, which gives us 7.5 minutes per mile.

A (7.5 minutes) CORRECT

This is the correct answer. The total time for the athlete to run 8 miles was 60 minutes. By dividing 60 minutes by 8 miles, we get an average of 7.5 minutes per mile.

B (7 minutes) YOUR ANSWER

This answer would be true if the total time to run 8 miles was 56 minutes. However, the athlete took 60 minutes to run 8 miles, so this answer is incorrect.

C (8.5 minutes) YOUR ANSWER

This answer would be true if the total time to run 8 miles was 68 minutes. However, the athlete took 60 minutes to run 8 miles, so this answer is incorrect.

D (8 minutes) YOUR ANSWER

This answer would be true if the total time to run 8 miles was 64 minutes. However, the athlete took 60 minutes to run 8 miles, so this answer is incorrect.

Conclusion

To calculate the average time per mile, the total time spent running is divided by the total distance covered. In this case, the athlete ran 8 miles in 60 minutes. When we divide 60 minutes by 8 miles, we get 7.5 minutes per mile, making option A the correct answer. The other options are incorrect as they do not represent the correct calculation of the total time divided by the total distance.

An athlete runs 4 miles in 28 minutes and then changes pace to run the next 4 miles in 32 minutes. Overall, what is the average time in minutes it takes the athlete to run 1 mile?

The athlete's average time to run 1 mile is 7.5 minutes.

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