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 9 of 59.
Amit keshri said:
1 year ago
Length of train = speed * time.
= 9 * 60 * 5/18(converting km/hr into m/sec).
= 150 meters.
= 9 * 60 * 5/18(converting km/hr into m/sec).
= 150 meters.
(15)
Sandeep said:
1 year ago
Thanks for explaining the answer.
(3)
Susi said:
1 year ago
Speed 60 km/hr.
Time = 9 sec.
1. Convert speed into m/sec.
ie, Speed/3.6 => 60/3.6=16.67 m/sec.
2. To find the length.
Length L =Speed x time.
ie, L= 16.67 x 9 =150.
So the length of the train is 150 m.
Time = 9 sec.
1. Convert speed into m/sec.
ie, Speed/3.6 => 60/3.6=16.67 m/sec.
2. To find the length.
Length L =Speed x time.
ie, L= 16.67 x 9 =150.
So the length of the train is 150 m.
(15)
Amar Mali said:
1 year ago
Thanks everyone for explaining the answer.
(18)
Akshaya said:
1 year ago
Speed = (60 x 5/18)m/sec=(50/3)m/sec.
Length of the train = (Speed x Time).
Length of the train = (50/3 x 9)m = 150 m.
Length of the train = (Speed x Time).
Length of the train = (50/3 x 9)m = 150 m.
(13)
Owais Khan said:
1 year ago
Given;
60 km = 60 * 1000 = 60,000m
1 Hr = 60 * 60 = 3600 Sec.
Solution:
60,000/3600 * 9 Sec. = 150m.
60 km = 60 * 1000 = 60,000m
1 Hr = 60 * 60 = 3600 Sec.
Solution:
60,000/3600 * 9 Sec. = 150m.
(190)
Gurram bhargavi said:
1 year ago
Length of train = speed * time.
= 9 * 60 * 5/18(converting km/hr into m/sec).
= 150 meters.
= 9 * 60 * 5/18(converting km/hr into m/sec).
= 150 meters.
(32)
Abhishek said:
1 year ago
60 km/h.
1 km/minutes.
1000/60 = 16.6666/sec
16.6666*9 = 150meter.
1 km/minutes.
1000/60 = 16.6666/sec
16.6666*9 = 150meter.
(77)
Adesh Katiya said:
1 year ago
s = 60km/hr
Time to cross pole = 9sec.
l = ?.
Time(train of length l) (pass a pole) = time(to cover l meters).
So,
9s = dist(l)/60km/hr
9s = dist(l)/1/6ms
9s = 6*dist
3/2 = dist
1.5 = dist
Hence option (d).
Time to cross pole = 9sec.
l = ?.
Time(train of length l) (pass a pole) = time(to cover l meters).
So,
9s = dist(l)/60km/hr
9s = dist(l)/1/6ms
9s = 6*dist
3/2 = dist
1.5 = dist
Hence option (d).
(10)
Yash Singh said:
1 year ago
Length= Speed * Time.
Length = 60*(5/18)*9,
Length = 150m.
Length = 60*(5/18)*9,
Length = 150m.
(27)
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