Subject: General Aptitude · Chapter: Problems on Trains · Exam: · Marks: · Difficulty:
A train takes 9 sec to cross a pole: If the speed of the train is 48 kmph, then length of the train is [Indian Railway Group 'D' Exam, 2014]
(a)150 m
(b)120 m
(c)90 m
(d)80 m
Answer
Answer (as printed): B
Explanation
Time taken by train to cross a pole = 9 sec. Distance covered in crossing a pole = length of train Speed of train = 48 km/h 48 × 5 = m/sec 18 40 = m/sec 3 40 ∴ Length of train = speed × time = ×9 3 = 120 m
Explanation as extracted from the printed page; notation may be imperfect.