SSC MTS 6 Aug 2019 Shift 3 Paper

Question : 31 of 100

Marks: +1, -0

A train, 700 m long crosses a pole in 35 seconds. How much time does it take to cross a platform of length 740 m?

1 min 12 sec
1 min 20 sec
1 min 24 sec
1 min 30 sec

Solution:

\Speed=\Distance ({ \length \of \train}/\time)

⇒ Speed = 700/35 = 20 m/sec.
⇒ Time (train takes to cross a platform) = length of train and platform/speed = (700 + 740)/20
⇒ Time (train takes to cross a platform) = 72 seconds = 1 minute 12 seconds
∴ Train takes to cross a platform in 1 minute 12 seconds.

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