(solution) A train having a length of 1/4 mile , is traveling at a speed of

(solution) A train having a length of 1/4 mile , is traveling at a speed of

A train having a length of 1/4 mile , is traveling at a speed of 75 mph. It enters a tunnel 3 ½ miles long. How long does it take the train to pass through the tunnel from the moment the front enters to the moment the rear emerges?

Explanation:
7 1
2 + 4 Total distance covered = = = 4 miles. 15
4 x 75 hrs Time taken = = 15 1
20 hrs 1
20 x 60 = 3 min. min. mile
s