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horsena [70]
2 years ago
7

46. An olympic athlete has just completed a four mile run. His average time was 6 minutes per mile. If he ran the first and last

mile in 5 minutes, and the other 2 were the same time as each other, what was the average time for the 2 miles in the middle
Mathematics
1 answer:
uranmaximum [27]2 years ago
4 0

Answer:

7 minutes

Step-by-step explanation:

average time = 6 minutes per mile

sum = average * count = 6 minutes / mile * 4 miles = 24 minutes

first + last mile = 5 + 5 = 10 minutes

first + second + third + last mile = sum = 24 minutes

second + third = sum - first - last = 24 - 5 - 5 = 24 - 10 = 14 minutes

average of 2 miles in the middle = sum / count = 14 minutes / 2 = 7 minutes

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