Aptitude - Problems on Trains - Discussion
Discussion Forum : Problems on Trains - General Questions (Q.No. 8)
8.
A train 360 m long is running at a speed of 45 km/hr. In what time will it pass a bridge 140 m long?
Answer: Option
Explanation:
| Formula for converting from km/hr to m/s: X km/hr = |  |
X x | 5 |  |
m/s. |
| 18 |
| Therefore, Speed = | |
45 x | 5 | m/sec |
= | 25 | m/sec. |
| 18 | 2 |
Total distance to be covered = (360 + 140) m = 500 m.
| Formula for finding Time = | |
Distance | |
| Speed |
 Required time = |
|
500 x 2 | sec |
= 40 sec. |
| 25 |
Discussion:
78 comments Page 8 of 8.
Sai said:
6 years ago
450mts ----> 36sec.
500mts ---> 40sec.
500mts ---> 40sec.
(1)
Prasad kapal said:
7 years ago
But we added 500 with 140.
Disha patel said:
2 years ago
How 25/2? Please explain.
(18)
Keanu said:
1 year ago
Nice answer. Thanks all.
(4)
Divya said:
2 decades ago
How can we get 5/18 ?
Nibha said:
6 years ago
Why 140m is added?
(1)
Gurwinder singh said:
7 years ago
Why (x*5/18) mps?
Shubham Jain said:
6 years ago
How come 25/2?
(1)
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers