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 10 of 63.
Rajneesh said:
8 years ago
Speed = Ditance/Time.
Distance = Speed * Time.
Or lenght = Speed * Time .
=( 60 *5/18) * 9,
= 50/3 * 9,
= 50 * 3 ,
= 150 meter.
Distance = Speed * Time.
Or lenght = Speed * Time .
=( 60 *5/18) * 9,
= 50/3 * 9,
= 50 * 3 ,
= 150 meter.
Yahya Haider said:
1 decade ago
60 km = 60 x 1000 m = 60000 m.
1 hour = 60 x 60 = 3600 seconds.
So, Length/Distance = Speed x Time.
= 60000 m/3600 s x 9 s.
= 149.999.
= nearly 150m.
Therefore option D is correct answer.
1 hour = 60 x 60 = 3600 seconds.
So, Length/Distance = Speed x Time.
= 60000 m/3600 s x 9 s.
= 149.999.
= nearly 150m.
Therefore option D is correct answer.
Jai said:
3 years ago
from the above statement:
60,000 m is crossed in=>3600 s.
? m is crossed in=> 9 s.
60000/x => 3600/9.
Do a normal cross-division method to find x. That's the answer.
60,000 m is crossed in=>3600 s.
? m is crossed in=> 9 s.
60000/x => 3600/9.
Do a normal cross-division method to find x. That's the answer.
(25)
Gowtham reddy said:
1 decade ago
Length of the train = 9*50/3 = 150.
If train crosses pole in 20 seconds.
Length of the train = 20*50/3?
Is the length of the train depend on the time the it crosses the pole? Please answer.
If train crosses pole in 20 seconds.
Length of the train = 20*50/3?
Is the length of the train depend on the time the it crosses the pole? Please answer.
VIVEK KUMAR said:
9 years ago
Time taken by a train of length l metres to pass a pole or standing man or a signal post is equal to the time taken by the train to cover l metres. How? explain me with simplification, please.
Jayakumar said:
1 decade ago
Jayanthi, Sundar, Kalimuthu Thanks for a lot to YOU all
I can easily understand your problem solving system and it is not only useful to me but also to all thanks thanks thanks thanks thanks
I can easily understand your problem solving system and it is not only useful to me but also to all thanks thanks thanks thanks thanks
Sathya said:
10 years ago
10/36 = 5/18.
If both numerator and denominator can divide by a Single number, then you can divide it.
Here in above problem 10 and 36 both are dividing by 2, that's why the answer is 5/18.
If both numerator and denominator can divide by a Single number, then you can divide it.
Here in above problem 10 and 36 both are dividing by 2, that's why the answer is 5/18.
Charmi said:
8 years ago
Out of his total income, Mr. Sharma spends 20% on house rent and 70% of the rest on household expenses. If he saves Rs 1,800 what is his total income (in rupees)?
Please explain the answer.
Please explain the answer.
Lokesh said:
1 decade ago
Local Train Leaves from a station at an intervals of 15 mins at a speed of 16kmph. A man moving from oppsite direction meets the train at an interval of 12 min. find the speed of that man?
Sonali said:
10 years ago
Hey, guise your answer is really good. But I have 1 prob how to convert km/hr 1000/3600. In that form 5/18.
But thanks to Arvind. I understand. How to convert. Really thanks again Arvind.
But thanks to Arvind. I understand. How to convert. Really thanks again Arvind.
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