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###### Eduncle posted an MCQ
September 14, 2023 • 17:15 pm 0 points
• CSIR NET
• General Aptitude

# A 100 m long train crosses a 200 m long and 20 m wide bridge in 20 seconds. What is the speed of the train in k/m hr?

A 100 m long train crosses a 200 m long and 20 m wide bridge in 20 seconds. What is the speed of the train in k/m hr?

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• ##### Krishn kumar barmase Barmase

simple calculation

Length of train = 100 m

length of bridge = 200 m

width of bridge = 20 m

time = 20 sec

Total distance = 200 + 100 = 300 m

Speed = Distance / time = 300 / 200 = 15 m/sec

Speed = 15 * 18 / 5 km/hr

54 km / hr

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