Question

18., How long will a train of length 250m running at a speed of 108 kmph take to cross another train of
length 350 m running in the same direction at a speed of 18 kmph?

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Answer 1

Answer:

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Step-by-step explanation:

The distance to be covered = Sum of their lengths = 200 + 300 = 500 m. Relative speed = 72 -36 = 36 kmph = 36 x 5/18 = 10 mps. Time required = d/s = 500/10 = 50 sec.

Answer 2

Answer:

24 sec

Step-by-step explanation:

T=D/S        S=108KMPH-18KMPH=90KMPH=90*5/18=25M/S

=600/25

=24 SEC

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