Aptitude - Problems on Trains - Discussion

There for 9seconds convert into hours.
60km convert into meters.
9/3600 * 60000 = 150.

Thanks all for explaining the answer.

@All.

Here, Speed of the train = 60×(5/18) = 50/3.

For km;
a/hr = (a*5%18).

And for m;
a/hr = (a * 18%5).

Very Good, Thanks everyone for explaining the answer.

Hi Sundar,

That was a damn good explanation

How to calculate 16*5/18*9?

Let length of the train be 'x' metres...
Speed of the train = 60km/hr(given)
Time = 9seconds(given)

refer the formulas for train problems...

As the time is given in seconds and answers are given in metre(train length) we are in need to convert from km/hr to m/s
km/hr = 1000m/(60min*60sec) = 5/18 m/s

Length of the train(distance covered a post)= speed * time
= (60*(5/18))*9
= (50/3)*9
= 150 m

For the train related formulas,check the READ MORE in Left corner(Important formulas)...

I'll Give Simple Logic Answer.

i.e.,
WKT,
Speed = Distance/Time.

So,
The speed of the train is given 60km/hr.
Convert Train Speed In meters and hours into Seconds.
That is,(60*1000)/(60min*60sec).

i.e.,1 km=1000m.
1 Hour=60min.
1 min= 60sec.

We get 16.67m/s.
That is, the train traveled 16.67 meters in 1 second.
Then multiply 9 seconds with 16.67 meters.

Then length of the train traveled 150 meters in 9 seconds.

Thank you all, very nice explanations.