# Aptitude:: Problems on Trains

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### Exercise

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Each of the questions given below consists of a statement and / or a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statement(s) is / are sufficient to answer the given question. Read the both statements and

• Give answer (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.
• Give answer (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.
• Give answer (C) if the data either in Statement I or in Statement II alone are sufficient to answer the question.
• Give answer (D) if the data even in both Statements I and II together are not sufficient to answer the question.
• Give answer(E) if the data in both Statements I and II together are necessary to answer the 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. A. I alone sufficient while II alone not sufficient to answer B. B. II alone sufficient while I alone not sufficient to answer C C Either I or II alone sufficient to answer D. D. Both I and II are not sufficient to answer E. E. Both I and II are necessary to answer

#### What is the length of a running train? I. The train crosses a man in 9 seconds. II. The train crosses a 240 metre long platform in 24 seconds.

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

#### What is the length of a running train? I. The train crosses a man in 9 seconds. II. The train crosses a 240 metre long platform in 24 seconds.

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

#### What is the length of a running train crossing another 180 metre long train running in the opposite direction? I. The relative speed of the two trains was 150 kmph. II. The trains took 9 seconds to cross each other.

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

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

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