A train 250m long takes 30s to cross a man running at a speed of 6kmph in the direction opposite to ...........

Quantitative Aptitude (Pb Patwari) Problems on trains

A train 250m long takes 30s to cross a man running at a speed of 6kmph in the direction opposite to that of train. What is the speed of the train?

20kmph

22kmph

23kmph

24kmph

Speed = x
Relative speed = (x+6)kmph
(x+6) = ( 250×18)/(30×5)
(x+6) = ( 4500)/(150)
X+6 = 30
X = 30 – 6 = 24kmph

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