Their times are 56.1 seconds, 57.8 seconds, 59.3 seconds, 60.3 seconds, and 57.4 seconds.

Given this information, what is the average time it takes to complete a 400 meter race?

(C) 58.18 seconds

Explanation

To find the average, add up all of the girls’ race times and divide by the number of racers.

Average time = (56.1 + 57.8 + 59.3 + 60.3 + 57.4)/5 = 290.9/5 = 58.18 seconds

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