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A certain car increased its average speed by 5 miles per hour in each successive 5-minute interval after the first interval. If in the first 5-minute interval its average speed was 20 miles per hour, how many miles did the car travel in the third 5-minute interval?
A. 1.0
B. 1.5
C. 2.0
D. 2.5
E. 3.0
OA D.
A certain car increased its average speed by 5 miles per hour in each successive 5-minute interval after the first interval. If in the first 5-minute interval its average speed was 20 miles per hour, how many miles did the car travel in the third 5-minute interval?
A. 1.0
B. 1.5
C. 2.0
D. 2.5
E. 3.0
OA D.
