Aptitude - Problems on Trains - Discussion
Discussion Forum : Problems on Trains - General Questions (Q.No. 6)
6.
A train 240 m long passes a pole in 24 seconds. How long will it take to pass a platform 650 m long?
Answer: Option
Explanation:
| Speed = |  |
240 |  m/sec = 10 m/sec. |
| 24 |
 Required time = |
|
240 + 650 | sec = 89 sec. |
| 10 |
Discussion:
202 comments Page 13 of 21.
Soumya Biswas said:
10 years ago
The train of 240 m long passes a platform of length 650 m, that means it crosses its own length and the length of platform together.
ASHWINI said:
10 years ago
We have to add train length because train has to travel the whole length of platform and it has to cover it's own length.
Asiri said:
10 years ago
The train is 240 m long. Therefore we add (650+240) together.
Bappy said:
9 years ago
As the length of trains is smaller than bridge so here train has to cover his as well as bridge distance. If the length of trains was bigger than platform then only by covering train's length platform length can be passed.
PANASA HARISH KUMAR said:
9 years ago
Dear Friends,
Train (240meters) Pole Platform (650 Meters)
T moving -> 10sec --> Train left platform.
240 + 650/10 = 89 sec.
Speed = distance(length)/time.
Speed = 240/24 = 10 m/sec.
Train (240meters) Pole Platform (650 Meters)
T moving -> 10sec --> Train left platform.
240 + 650/10 = 89 sec.
Speed = distance(length)/time.
Speed = 240/24 = 10 m/sec.
Vipin said:
9 years ago
Easy tips!
240 + 650 = 890/10 m.
= 89.
240 + 650 = 890/10 m.
= 89.
Natraj said:
9 years ago
d = 240, s = 24 sec. Total d = 650, Speed = ?.
d = total d + d = 650 + 240 = 890.
Speed = d/t = 240/24 = 10 m/s to pass a platform.
d = 650, Speed = 10 m/s, t =?
t = d/s = 890/10 = 65 sec
Even I have 65 sec as an answer. Then how to get 89 sec? Please help me.
d = total d + d = 650 + 240 = 890.
Speed = d/t = 240/24 = 10 m/s to pass a platform.
d = 650, Speed = 10 m/s, t =?
t = d/s = 890/10 = 65 sec
Even I have 65 sec as an answer. Then how to get 89 sec? Please help me.
Pravin said:
9 years ago
@Natraj.
Please read your last line carefully,
That is d/s = 890/10 and the answer is = 89.
Please read your last line carefully,
That is d/s = 890/10 and the answer is = 89.
Milesh bhange said:
9 years ago
Don't forget to add trains length, question is asking answer about how much time it will take to cross a platform means train will star platforms one end to another in 65 seconds and what about trains end means its length 240 meter question said how much time it will take to cross a whole train means trains end. You have to add 240 its trains length.
HARIHARAN said:
9 years ago
Which is the right answer 65 or 89?
Please help me.
Please help me.
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