Trains Boats and Streams Practice Test 2 with solutions

Question : 32 of 40

Marks: +1, -0

A 270 m long train running at the speed of 120 km/hr crosses another train running in opposite direction at the speed of 80 km/hr in 9 seconds. Find the length of the other train.

320 m
260 m
240 m
230 m

Validate

Solution:

Their relative speed = (120 + 80) km/hr = 200 ×

5/{18}

m/s =

{500}/9

m/s
Distance travelled in 9 seconds =

{500}/9 × 9

= 500 m
Hence, length of the other train = 500 – 270 = 230 m

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