RRB Group-D Model Paper 14 with answers for online practice

Question : 64 of 100

Marks: +1, -0

A train of length 340 m passes a man travelling in the opposite direction in 18 s. If the train travels with a speed of 63 kmph, what is the speed of the man?

2 kmph
3 kmph
4 kmph
5 kmph

Validate

Solution:

Speed of the train = 63 kmph
Length of train = 340 m
Time taken by train to pass the man = 18 s
Relative speed =

{\Length \of \train}/{\Time \taken \by \train \to \pass \the \man}=340/18=170/9

m/s

Relative speed =

170/9×18/5

=68 kmph
Since, they travelin the opposite direction
Relative speed = Speed of train + Speed of man
Speed of man = Relative speed - Speed of train = 68 - 63 = 5 kmph

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