Question
Vincent drove at an average speed of 87 km/h for 40 minutes. He then reduced his average speed by 7 km/h and drove a further 39 minutes before he reached his house. Find the total distance covered by Vincent.
3 m

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Vincent drove at an average speed of 87 km/h for 40 minutes. He then reduced his average speed by 7 km/h and drove a further 39 minutes before he reached his house. Find the total distance covered by Vincent.