Question
Download Solution PDFA train starts from station P, runs through stations Q, R, S, T and reaches station U. It stops at stations Q, R, S and T for 2 minutes, 4 minutes, 6 minutes, and 8 minutes, respectively. The distance between P and U is 50 km. What is the average speed of the train between stations P and U (in km/h), if it runs for 70 minutes between the stations, with uniform speed?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven:
Distance = 50 km,
Total run time = 70 minutes,
Stoppage time at stations = 2 + 4 + 6 + 8 = 20 minutes
Concept:
Average speed = Total distance/Total time
Calculation:
⇒ Total time including stoppages = 70 + 20 = 90 minutes = 90/60 = 1.5 hours
⇒ Average speed = 50 km/1.5 hours = 100/3 km/h
Hence, the average speed of the train between stations P and U is 100/3 km/h.
Last updated on Jun 22, 2025
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