Q. A train travelling at a speed of 75 mph enters a tunnel 3 miles long. The train is mile long. How long does it take for the train to pass through the tunnel from the moment the front enters to the moment the rear emerges?

Option
A. 2.5 min
B. 3 min
C. 3.2 min
D. 3.5 min

• Ans)C (3.2)
  Total distance travel by train is 4 miles
  and speed of the train is 75 miles per hour
  so time is distance by speed = (4/75) hours
  den we should change to minits then (4/75)*60 = 3.2....
• 12 years agoHelpfull: Yes(4) No(0)