A train running with a speed of 45 km/hr can cross a
pole in 10 seconds and a platform in 20 seconds. Find the length of the platform.
A125 metresCorrect AnswerIncorrect Answer
B105 metresCorrect AnswerIncorrect Answer
C127 metresCorrect AnswerIncorrect Answer
D115 metresCorrect AnswerIncorrect Answer
Solution
Speed of the train = 45 × (5/18) = 12.5 m/sec Length of the train = 12.5 × 10 = 125 metres Let the length of the platform be ‘x’ metres Therefore, 125 + x = 12.5 × 20 Or, x = 250 – 125 = 125 metres