A long distance runner runs 9 laps of a ...

A long distance runner runs 9 laps of a 400 metres track everyday. His timings (in minutes) for four consecutive days are 88, 96, 89 and 87 resplectively. On an average, how many metres/minute does the runner cover ?

40 m/min

45 m/min

38 m/min

49 m/min

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