Aptitude - Problems on Trains - Discussion
Discussion Forum : Problems on Trains - General Questions (Q.No. 4)
4.
Two trains running in opposite directions cross a man standing on the platform in 27 seconds and 17 seconds respectively and they cross each other in 23 seconds. The ratio of their speeds is:
Answer: Option
Explanation:
Let the speeds of the two trains be x m/sec and y m/sec respectively.
Then, length of the first train = 27x metres,
and length of the second train = 17y metres.
 |
27x + 17y | = 23 |
| x+ y |
27x + 17y = 23x + 23y
4x = 6y
| |
x | = | 3 | . |
| y | 2 |
Discussion:
236 comments Page 24 of 24.
SAURABH PANDEY said:
9 months ago
Very well done. Thanks.
(6)
Boomathi said:
2 decades ago
very good solution....
Anuj said:
8 years ago
23-27:23-17.
4:6
2:3
4:6
2:3
Shield said:
9 years ago
How is it possible?
Karthik said:
1 decade ago
@Narayana superb.
Shro said:
1 decade ago
Thanku Anjan :).
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