Subject: General Aptitude · Chapter: Problems on Trains · Exam: · Marks: · Difficulty:
Two trains 100 metres and 120 metres long are running in the same direction with speeds of 72 km/hr and 54 km/hr. In how much time will the first train cross the second?
Answer
Answer (as printed):
Explanation
Relative speed of the trains = (72 – 54)km/hr = 18 km/hr = 18 × m/sec = 5 m/sec . 18 Time taken by the trains to pass each other 220 = Time taken to cover (100 + 120) m at 5 m/sec = sec = 44 sec . 5 1
Explanation as extracted from the printed page; notation may be imperfect.