Trains Boats and Streams Practice Test 1 with solutions

Question : 18 of 40

Marks: +1, -0

Two trains 132 m and 108 m in length respectively are running in opposite directions, one at the rate of 32 km/hr and other at the rate of 40 km/hr. In what time will they be completely clear of each other from the moment they meet?

13 sec.
12 sec.
11 sec.
10 sec.

Validate

Solution:

Their relative speed = (32 + 40) = 72 km/hr = 72 ×

5/{18}

= 20 m/s
Required time =

{132 + 108}/{20}

{240}/{20}

= 12 sec.

Go to Question:

Prev Question

Next Question