A train crosses two platforms of lengths 1000 , and 600 m in 80 seconds and 60 seconds recpectively. What is the length of the train?
Show answer & explanation
Correct answer: B
Explanation
Correct Answer is option 2 i.e. 600 m
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Understanding |
Application |
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Suppose length of the train = x mtr Train crosses platform of length 1000 m in 80 sec. |
So, Speed = (x + 1000)/80 |
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Train crosses platform of length 600 m in 60 sec. |
So, Speed = (x + 600)/60 |
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Equating both equations: |
(x + 1000)/80 = (x + 600)/60 ⇒ 6x + 6000 = 8x + 4800 ⇒ 2x = 1200 ⇒ x = 600 |
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Hence, length of train = 600 m |