Math, asked by dhanasekartool, 7 months ago

A train 75 m long is moving at a speed of 45 km/hr. How long will it take to pass a platform 200 long?
A) 42 sec
B) 22 sec
C) 20 sec
D) 36 sec

Answers

Answered by sudha021tomar
0

Answer:

25second

Step-by-step explanation:

Total discovered by the length of both trains

=50m+75m

and, Their relative speed in same direction

= 68−50=18 km/hr

∴(Speed subtracted in same direction)

then, the time to cross other will be

=125 m/sec18 kms

=125×1818×5m/sec

{∴1km/h=518m/s}

=25 seconds

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