The tourist covered the first part of the journey at a speed of 5 km / h, and the second – at a speed of 8 km / h.

univerkov | August 22, 2021 | education

The tourist covered the first part of the journey at a speed of 5 km / h, and the second – at a speed of 8 km / h. Determine the average speed of the tourist if he moved for the same time in the first and second parts of the journey.

Initial data: V1 (tourist speed in the first part of the journey) = 5 km / h; V2 (tourist speed in the second part of the route) = 8 km / h; t1 = t2 (the tourist moved for the same time in the first and second parts of the path).

Since the tourist moved for the same time in the first and second parts of the path, the formula for calculating his average speed is: Vav = (V1 + V2) / 2.

Calculation: Vav = (5 + 8) / 2 = 6.5 km / h.

Answer: The average speed of a tourist is 6.5 km / h.

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