Question
Vaidev drove a car at an average speed of 90 km/h for 20 minutes. He then reduced his average speed by 10 km/h and drove another 30 min before he reached his destination. Find the total distance covered by Vaidev.
3 m

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Vaidev drove a car at an average speed of 90 km/h for 20 minutes. He then reduced his average speed by 10 km/h and drove another 30 min before he reached his destination. Find the total distance covered by Vaidev.