Question
Download Solution PDFDixit covers a certain distance by car, driving at the speed of 28 km/h and he returns to the starting point riding on a scooter at the speed of 36 km/h. Find the average speed (in km/h) for the whole journey.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven:
Dixit covers a certain distance by car, driving at the speed of 28 km/h and he returns to the starting point riding on a scooter at the speed of 36 km/h.
Formula used:
Average Speed = \(\dfrac{2 \times \text{Speed}_1 \times \text{Speed}_2}{\text{Speed}_1 + \text{Speed}_2}\)
Calculation:
Speed1 = 28 km/h
Speed2 = 36 km/h
Average Speed = \(\dfrac{2 \times 28 \times 36}{28 + 36}\)
⇒ Average Speed = \(\dfrac{2016}{64}\)
⇒ Average Speed = 31.5 km/h
∴ The correct answer is option (1).
Last updated on Jun 3, 2025
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