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Question

What is the speed of the train whose length is 210 metres?
I. The train crosses another train (Howrah Express/12869) of 300 metres length running in opposite direction in 10 seconds.
II. The train crosses another train (Howrah Express/12869) running in the same direction at the speed of 60 km/hr in 30 seconds.


A
I alone sufficient while II alone not sufficient to answer
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B
II alone sufficient while I alone not sufficient to answer
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C
Either I or II alone sufficient to answer
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D
Both I and II are not sufficient to answer
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E
Both I and II are necessary to answer
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Solution

The correct option is E Both I and II are necessary to answer
Time taken to cross the train, 

Logical Reasoning

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