Question
Valen drove a car at an average speed of 81 km/h for 40 minutes. He then reduced his average speed by 9 km/h and drove another 30 min before he reached his destination. Find the total distance covered by Valen.
3 m

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Valen drove a car at an average speed of 81 km/h for 40 minutes. He then reduced his average speed by 9 km/h and drove another 30 min before he reached his destination. Find the total distance covered by Valen.