Aptitude - Problems on Trains - Discussion

Hi i am palanivel i got ur explanation for above question..thak you..

Hi Kalimuthu great explanation.

I'M UNDERSTAND SIR BUT I'm suppose to be confusing to seeing above following questions so I'm kindly requesting you to explain the solutions above question, thank you.

(sqrt(3N))^3/2 = 90

How to find N value from this problem?

From the question we can predict speed= distance/hour
((by speed=60 km/hr)note the km/hr)
As to calculate for 9 sec I am converting the whole things to seconds
(i.e.)speed=60000/3600=16.666666(remember this is for one second)

therefore for 9 seconds
16.666666*9= 150

@Contactjerin

Feet to Meter conversion: 1 feet = 0.3048 meter
Meter to Feet conversion: 1 meter = 3.28083 feet

This is what I mentioned already in this discussion.

You can easily find the answer for your question that is:

3.28083 feet = 1 meter.

Any one know the how many feet is one meter?

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)...

@Rita

Please explain this problem I am not understand.

Hi good morning this problem am not understand please explain me.