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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?

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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
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Let the speed of the train be x m/s.

Given 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 =$(\;25 \times \frac{{18}}{5}\frac{{km}}{{hr}})$

Speed of the train = 90 km/hr.