Trains Boats and Streams Practice Test 2 with solutions

Question : 39 of 40

Marks: +1, -0

A train running at 60 km/hr takes 9 seconds to pass a platform. Next it takes 7 seconds to pass a man walking at the rate of 6 km/hr in the same direction. Find the length of the platform?

45 m
50 m
100 m
105 m

Validate

Solution:

Length of the train = (60 – 6) ×

5/{18}

× 7 = 105 m
Distance covered in 9 sec. = 60 ×

5/{18}

× 9 = 150 m
Hence, length of the platform = 150 – 105 = 45 m

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