Question
Aalok. Aakash and Aamil are on a trip by a car. Aalok drives during the first 2 hours at an average speed of 80 km/h: Aakash drives during the next 2 hours at an average speed of 90 km/h: and Aamil drives for the next 2 hours at an average speed of 100 km/h. They reach their destination after exactly 6 hours. What is their mean speed in km/h?
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