Trains Boats and Streams Practice Test 1 with solutions

Question : 6 of 40

Marks: +1, -0

A train moves past a telegraph post and a bridge 264 m long in 8 seconds and 20 seconds respectively. Find the speed of the train.

Solution:

Let speed of the train be x m/s; then,
x × 20 – x × 8 = 264
⇒ 12x = 264
∴ x = 22 m/s
Hence, speed of the train = 22 ×

{18}/5

km/hr =

{396}/5

= 79.2 km/hr

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