Two trains 100 meters and 150 meters long are running in opposite directions at speeds of 40 km/h and 50 km/h respectively. In what time will they cross each other? MCQ with Answer and Explanation
Two trains 100 meters and 150 meters long are running in opposite directions at speeds of 40 km/h and 50 km/h respectively. In what time will they cross each other?
A. 10 seconds
B. 12 seconds
C. 9 seconds
D. 11 seconds
Answer: Option A
Solution (By JKSSB Mock Tests)
Total distance = 100 + 150 = 250 meters. Relative speed in opposite directions = 40 + 50 = 90 km/h = 25 m/s. Time taken = 250 / 25 = 10 seconds.
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