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Question

The given question consists of a set of statements. Find out whether the data provided in the statements are sufficient to answer the question and mark the option:

What is the speed of the running goods train?
I. Length of the goods train is 90 metres.
II. The goods train crossed another stationary train whose length is 135 m in 3 seconds.


A

if the data in Statement I alone are sufficient to answer the question, while the data in Statement II alone are not sufficient to answer the question.

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B

if the data in Statement II alone are sufficient to answer the question, while the data in Statement I alone are not sufficient to answer the question.

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C

if the data either in Statement I or in Statement II alone are sufficient to answer the question.

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D

if the data even in both Statements I and II together are not sufficient to answer the question.

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E

if the data in both Statements I and II together are necessary to answer the question.

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Solution

The correct option is E

if the data in both Statements I and II together are necessary to answer the question.


Speed of the first train =(sum of the length of the two trains)Time taken =(90+135)3m/s=75m/s

So, both the statements are necessary to get the answer.


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