Direction: Each of the questions below consists of a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statements are sufficient to answer the question. Read both the statements and Read both the statements and give answer
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What is the speed of a running train which takes 9 seconds to cross a signal post?
I. The length of the train is 90 m.
II. The train takes 27 seconds to cross a platform of 180 m.
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- If the data in statement I alone are sufficient to answer the question, while the data in statement I alone are not sufficient to answer the question.
- 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
- If the data either in statement I alone or in statement II alone are sufficient to answer the question.
- If the data even in both statements I and II together are not sufficient to answer the question.
- If the data in statement I alone are sufficient to answer the question, while the data in statement I alone are not sufficient to answer the question.
Correct Option: C
On the basis of above given details in question , we can say
Time taken in crosses a signal post = 9 seconds
From statement I , The length of the train = Distance = 90 m
Speed of running train = distance / time taken = 90 / 9 = 10 m / sec
From statement II , The length of platform = 180 m and time taken = 27 seconds
Speed of running train = distance / time taken = ( 90 + 180 ) / 27 = 270 / 27 = 10 m / sec
Data either in statement I alone or in statement II alone are sufficient to answer the question.Hence , option C is correct answer .
