A train, 300m long, passed a man, walking along the line in the same direction at the rate of 3 km/hr in 33 seconds. The speed of the train is
Let's say speed of train is $$x$$
and man is going along the train
hence its relative speed will be ($$x$$-3), through which it is covering a distance of .3 km in 33 seconds
so $$x-3 = \frac{.3}{\frac{33}{3600}}$$
on solving for $$x$$ we get $$x$$ = 35.7 km.
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