Aptitude - Problems on Trains - Discussion
Discussion Forum : Problems on Trains - General Questions (Q.No. 1)
1.
A train running at the speed of 60 km/hr crosses a pole in 9 seconds. What is the length of the train?
Answer: Option
Explanation:
| Speed = |  |
60 x | 5 |  m/sec |
= | |
50 | m/sec. |
| 18 | 3 |
Length of the train = (Speed x Time).
 Length of the train = |
|
50 | x 9 | m = 150 m. |
| 3 |
Discussion:
626 comments Page 24 of 63.
Contactjerin said:
2 decades ago
Any one know the how many feet is one meter?
Sundar said:
2 decades ago
@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.
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.
Suganthan.m said:
2 decades ago
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
((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
Vishnu said:
2 decades ago
(sqrt(3N))^3/2 = 90
How to find N value from this problem?
How to find N value from this problem?
UMESH said:
2 decades ago
Hi Kalimuthu great explanation.
Palanivel said:
2 decades ago
Hi i am palanivel i got ur explanation for above question..thak you..
Joseph said:
2 decades ago
First convert the km into metres 60km will bcome 60000 metres then divide 60000 with 1 hour that is 60,60000/60 this will give us the speed of the train in mins n then 1000 with 60(to convert the speed in seconds)then multiply the ans with 9 seconds.ie 16.66*9 will give us 150 :)
Nagaraju said:
2 decades ago
Here we have to think that they are asking the length of train.
First we have conform that all the values given are same format or not .
if not we have to convert them into one format depending on the answers given to us.
Then it is possible to get the correct answer.
The first answer explanation by Sundar is very good .
First we have conform that all the values given are same format or not .
if not we have to convert them into one format depending on the answers given to us.
Then it is possible to get the correct answer.
The first answer explanation by Sundar is very good .
ARADHANA said:
1 decade ago
The first answer which was given by sunder is best, even a kid can understand it well, well done sunder.
Dheeraj said:
1 decade ago
Nice trick.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers