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:
587 comments Page 38 of 59.
Dinesh said:
9 years ago
Nice sir I don't know aptitude but this type explanation should be given that time so easy to learn. Thank you once again.
Surya said:
9 years ago
The word "thank you" is not for your explanation @Sunder. But I got one doubt evar bike also maintain same speed and then length of bike is?
Neeraj said:
9 years ago
Much better explanation sir I am very impress by your solution that's very easy and easy understandable,
Thank you very much.
Thank you very much.
Silpa said:
9 years ago
Thanks for your explanation.
Kumar said:
9 years ago
Why are we making 10/36 to 5/18?
Rohit said:
9 years ago
Much better explanation sir I am very impressed by your solution that's very easy and easily understandable.
Sanjay said:
9 years ago
Very good explanation @Sundhar.
Shalini said:
9 years ago
This explanation is good and useful for beginners.
Muhammad Abdurrehman said:
9 years ago
Solution:
All Quantities are given in question.
Note: Answer is in the meter so will convert km/hr to m/s.
Given Data:
1. Speed = 60km/hr = 60*(1000/3600) = 100/6 m/s = 16.666m/s.
2. Time = 9 sec.
Sol: We know that speed = distance/ time.
Speed(s) = v/t or v = s * t = 16.666m/sec*9 sec.
So, s = 150 meters.
All Quantities are given in question.
Note: Answer is in the meter so will convert km/hr to m/s.
Given Data:
1. Speed = 60km/hr = 60*(1000/3600) = 100/6 m/s = 16.666m/s.
2. Time = 9 sec.
Sol: We know that speed = distance/ time.
Speed(s) = v/t or v = s * t = 16.666m/sec*9 sec.
So, s = 150 meters.
Manoar Biswas said:
9 years ago
Now I understand. Thank you sir.
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