top button
Flag Notify
    Connect to us
      Facebook Login
      Site Registration Why to Join

    Get Free Puzzle Updates

Facebook Login
Site Registration

In what time will they be clear of each other from the moment they meet ?

0 votes
106 views

Two trains 132 metres and 108 metres in length are running towards each other on parallel lines , one at the rate of 32 km per hour and another at 40 km per hour .
In what time will they be clear of each other from the moment they meet ?

posted Jun 19, 2015 by Samardeep Acharya

Share this puzzle
Facebook Share Button Twitter Share Button Google+ Share Button LinkedIn Share Button Multiple Social Share Button

1 Solution

0 votes

Total length trains = 240 meter
Total speed trains = 72 km/hr = 20 m/s
Total time = 12 seconds.

solution Jun 25, 2015 by Jcm



Similar Puzzles
0 votes

Two trains, each two miles long, enter two one mile long tunnels that are two miles apart from one another on the same track. The trains enter the tunnels at exactly the same time. The first train is going 5 miles/hour, and the second train is going 10 miles/hour. What is the sum of the lengths of the two trains that will protrude from the tunnels at the exact moment that they collide, assuming that neither train changes its speed prior to collision? The trains are on the same track headed in opposite directions (i.e. directly toward one another).

0 votes

Two trains 140 m and 160 m long run at the speed of 60 km/hr and 40 km/hr respectively in opposite directions on parallel tracks. What is the time (in seconds) which they take to cross each other?

0 votes

Two men start a bicycle race at triangular track ABC.

Starting from the point A simultaneously, one of them traverse the track in clockwise sense A-> B -> C & the other in anticlockwise sense A-> C-> B with their respective constant speed. After 4 min from the start, they first meet at B and then continue the race.

After what minimum time they meet first at B, will they again meet at B? Distance AB=500m, BC=400m, CA=300m

+2 votes

There are 2 points A and B in a river which is flowing at 5kmph. Distance between A and B is 300 kms. Two boats with speed 10 kmph and 15 kmph (in still water) start at A and B respectively. When will the boats meet first time and second time?

+1 vote

A & B are two stations 660 km apart. A train starts from A at 8 a.m. and travels towards B at 120 km/hr. Another train starts from B at 9 a.m. and travels towards A at 150 km/hr. At what time do they meet?

Contact Us
+91 9880187415
sales@queryhome.net
support@queryhome.net
#470/147, 3rd Floor, 5th Main,
HSR Layout Sector 7,
Bangalore - 560102,
Karnataka INDIA.
QUERY HOME
...