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Direction (): Following are the questions based on two statements and answer the following based on the given statements.
A train crosses a platform of twice of its length in 48seconds. Find the speed of train?
Statement I. Train crosses a man walking at a speed of 4m/s in the same direction as the direction of the train in 20 seconds
Statement II. After covering half of the platform, due to fault in the engine it covers remaining distance at a speed of which is 60% of its initial speed.
Statement I alone is sufficient to answer the question while statement II alone is not sufficient to answer the question
Statement II alone is sufficient to answer the question while statement I alone is not sufficient to answer the question
Both statements I and II together are required to answer the question.
Either the statement I alone or Statement II alone is sufficient to answer the question
Question cannot be answered from any of the given statements or from both the statements.
Let length of train be x meter so length of platform will be 2x meter
So, speed of train (in m/s) = 3x/48
From I –ATQ,
So, x can be calculated from I and hence speed of train can be calculated.
From II – Statement II gives information only about percentage decrease in speed. We can not calculate speed of train because no information is given about time.
So statement I alone is sufficient to answer the question while statement II alone is not sufficient to answer the question.
By: Munesh Kumari ProfileResourcesReport error
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