Trains Boats and Streams Practice Test 3 with solutions

Question : 39 of 40

Marks: +1, -0

Find the length of a train which passes a 4 m long car parked alongside the track in 12.5 seconds and 130 m long platform in 16 seconds?

Solution:

Let the length of the train = x m

{x+4}/{12.5}

{x+130}/{16}

16x + 64 = 12.5x + 1,625
3.5x = 1,561
x = 446 m

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