Question

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?

• A. 75 Km/hr
• B. 90 Km/hr
• C. 87 Km/hr
• D. 96 Km/hr

Answer 1

Answer:

B. 90 Km/hr

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.