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 12 of 21.
Sarang said:
7 years ago
Distance= speed * time,
240/ 24=time,
Time = 10s,
Distance= speed* time.
240+ 650 combing distance = 890,
890/10= time,
89 m/s.
240/ 24=time,
Time = 10s,
Distance= speed* time.
240+ 650 combing distance = 890,
890/10= time,
89 m/s.
Madhav Kulkarni said:
6 years ago
Train Length 240m long.
Time to pass pole = 24 second.
Speed= 240/24=10 m/s.
For length 650 m = 240+650=890m.
Speed = 890/10=89.
Time to pass pole = 24 second.
Speed= 240/24=10 m/s.
For length 650 m = 240+650=890m.
Speed = 890/10=89.
Basavaraj S G said:
1 decade ago
Hello guys.
W.k.t, speed = dist/time.
So on comparing,
Dist/time = dist/time.
240/24 = (240+650)/t.
t = (890/24)/240.
t = 89 sec.
W.k.t, speed = dist/time.
So on comparing,
Dist/time = dist/time.
240/24 = (240+650)/t.
t = (890/24)/240.
t = 89 sec.
Aaa said:
2 years ago
I think the length of a platform is greater than the length of the trian so to pass the platform we should be adding each lengths.
(16)
Soumya nayak said:
3 months ago
There is no need to add both lengths.
The question is only for the platform. So why do we add both?
Please anyone explain to me?
The question is only for the platform. So why do we add both?
Please anyone explain to me?
(10)
ASR said:
8 years ago
I believe the right answer is 65 Sec.
Because train speed is 10m/Sec and to cross 650-meter bridge it took 65 sec to pass that.
Because train speed is 10m/Sec and to cross 650-meter bridge it took 65 sec to pass that.
Sudipta said:
1 decade ago
If the train cross the platform i.e it crosses own length.
(own length 240 + Platform 650) = / 24 time = 89 sec its correct.
(own length 240 + Platform 650) = / 24 time = 89 sec its correct.
Prabhakaran said:
1 decade ago
The question asked is only How long will it take to pass a platform 650 m long. Why we should add 250? Can any one explain?
Shreya Shetty said:
5 years ago
I think there's no need to add 240. They have only asked what's the time to cross platform. Thus the answer must me 65secs.
(2)
SalahaKA said:
2 years ago
WHY NOT 65?
We got train speed =10.
Then we can directly find the time right?
i.e time = 65 because t=d/s=>650/10 = 65.
We got train speed =10.
Then we can directly find the time right?
i.e time = 65 because t=d/s=>650/10 = 65.
(72)
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