Trains Boats and Streams Practice Test 2 with solutions

Question : 37 of 40

Marks: +1, -0

Two trains are running at 40 km/hr and 20 km/hr respectively in the same direction. Fast train completely passes a man sitting in the slower train in 5 seconds. Find the length of the fast train.

$27 7/9$ m
27 m
$23 2/9$ m
23 m

Validate

Solution:

Their relative speed = (40 – 20) km/hr = 20 ×

5/{18}

{50}/9

m/s
Length of the fast train =

{50}/9 × 5

{250}/9

m =

27 7/9

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