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A train having a length of 500 m passes through a tunnel of 1000 m in 1 minute. What is the speed of the train in Km/hr?

A75 Km/hr

B90 Km/hr

C87 Km/hr

D96 Km/hr

Answer:

B. 90 Km/hr

Read Explanation:

Let the speed of the train be x m/s. length of the train = 500 m Length of the tunnel = 1000 m Time taken to pass the tunnel = 1 minute = 60 seconds x = (500 + 1000) ÷ 60 x = 25 m/s Speed of the train in km/hr =25x18/5= 90 km/hr.


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