A train 300 meters long requires exactly 25 seconds to pass a railway worker running at 6 km/h in the opposite direction. Find the speed of the train. MCQ with Answer and Explanation
A train 300 meters long requires exactly 25 seconds to pass a railway worker running at 6 km/h in the opposite direction. Find the speed of the train.
A. 40.0 km/h
B. 34.2 km/h
C. 37.2 km/h
D. 43.2 km/h
Answer: Option C
Solution (By JKSSB Mock Tests)
Relative speed = 300 / 25 = 12 m/s = 12 * (18/5) = 43.2 km/h. Since they move in opposite directions, Relative Speed = Speed of train + Speed of worker => 43.2 = Speed of train + 6 => Speed of train = 37.2 km/h.
A luxury car handles a tracking route sector of 240 km. It finishes the first half segment stretch at 40 km/h and the second half sector at 60 km/h. Find the mean average speed recorded across the full route.
A train starts from Delhi at 6:00 AM and reaches Ambala at 10:00 AM. Another train starts from Ambala at 8:00 AM and reaches Delhi at 11:30 AM. At what time do the two trains cross each other?
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