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Question

Train ‘A’ running with a speed of 54 km/hr can cross a standing goods train of 4 times its length in 30 seconds. Find the time taken by 310 metres long train ‘B’ which is coming from opposite direction of train ‘A’, with a speed of 20 m/s, to cross train ‘A’.

A 5 seconds

B 14 seconds

C 8 seconds

D 10 seconds

E None of these

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