A train 150 m long is running with a speed of 34kmph In what time will it pass Adarsh who is running...........

Quantitative Aptitude (CDS) Problems on trains

A train 150 m long is running with a speed of 34kmph. In what time will it pass Adarsh who is running at 4 kmph in the same direction in which the train is going?

20 sec

22sec

18 sec

16sec

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Explanation:

Speed of the train relative to Adarsh = ( 34 - 4 ) = 30 kmph

= (30x5/18) m/sec = (25/3) m/sec

Time is taken by the train to cross the Adarsh =Time taken by it to cover 150 m at (25/3)m/sec

(150x3/25)sec = 18 sec