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 33 of 59.
Rajneesh said:
7 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.
Santosh said:
7 years ago
Nice explanation, Thanks @Sundar.
Alok Dhiman said:
7 years ago
Nice explanation, thanks all.
Charmi said:
7 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.
Tarasankar Dey said:
7 years ago
Thanks to all for explaining the answer.
Sarang said:
7 years ago
Distance = speed*time.
60*5/18*9,
60*5/2,
300/2 = 150.
60*5/18*9,
60*5/2,
300/2 = 150.
Swapnali said:
7 years ago
Thanks to all for explaining the answer.
Sunil sharma said:
7 years ago
Tse speed of train 60km/h,
cross the poll with in 9 sec.
speed of train in 1 mint. = 1km,
Now, speed of train in 1 sec.= 1000/60= 16.67,
Now the length of train= 16.67*9 = 150 m.
cross the poll with in 9 sec.
speed of train in 1 mint. = 1km,
Now, speed of train in 1 sec.= 1000/60= 16.67,
Now the length of train= 16.67*9 = 150 m.
Alpesh said:
7 years ago
1 km = 1000 m,
1 hours= 60 min.
60km=6 hours that 1km=1 hours,
1000/60*9=150,
So, D. 150 is correct.
1 hours= 60 min.
60km=6 hours that 1km=1 hours,
1000/60*9=150,
So, D. 150 is correct.
Nilesh nande said:
7 years ago
Best explanations, thank you all.
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