d Word Problem 1 ( Trains running in the same direction ) | Job Exam Rare Mathematics (JEMrare) - Solved MCQs

# Word Problem 1 ( Trains running in the same direction )

Problem 1 : There are two trains namely T1 and T2, with lengths of 65 m and 55 m respectively, and are running in the same direction with speeds of 20 km/hr and 47 km/hr respectively. The faster train will cross totally the slower one in how many seconds ?

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Solution:

Length of Train T1; Length of Train T2; Speed of train T1; Speed of train T2; As Train T2 is moving faster than Train T1 so, the net speed by which Train T2 will cross Train T1 is given by;  Because there are 1000 meters in ikm and 3600 seconds in 1 hour, so;   Train T2 while crossing Train T1 with net speed of 7.5 m/sec  will cover distance equal to sum of lengths of both trains;

so we use formula;  Put  distance, and for Train T2 net speed; We get,  So. Train T2 will completely cross Train T1 in 16 seconds.

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