Trains Boats and Streams Practice Test 4 with solutions

Question : 10 of 40

Marks: +1, -0

A train 130 metres long crosses a bridge in 21 seconds moving at the speed of 90 km/hr. Find the length of the bridge.

Solution:

Distance covered in 21 seconds = 90 ×

5/{18}

× 21 = 525 m
Length of the bridge = 525 – 130 = 395 m

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