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 37 of 59.
Sam said:
10 years ago
1000/60 = 16.666.
= 16.666x9 = 150.
One more 1000/10 = 100.
= 60/10 = 6.
= 100 mtr/6 sec.
= 50 mtr/3 sec.
So 150 mtr in 9 sec.
= 16.666x9 = 150.
One more 1000/10 = 100.
= 60/10 = 6.
= 100 mtr/6 sec.
= 50 mtr/3 sec.
So 150 mtr in 9 sec.
Naveen said:
10 years ago
Time = Distance/Speed.
From this Distance = Time*Speed.
= 9*(60*(5/18)) = 149.9999.
= 150.
From this Distance = Time*Speed.
= 9*(60*(5/18)) = 149.9999.
= 150.
Bulu said:
10 years ago
How 1 hr can be written as 5/3 km/hr?
Tripta said:
10 years ago
1 km = 1000.
1 hr = 3600 s.
Why it is changed into 10/36 and 5/18?
1 hr = 3600 s.
Why it is changed into 10/36 and 5/18?
Shivaraj said:
10 years ago
10 and 36 can be divisible by 2. So 5*2/18*2.
R SUBRAMANI said:
10 years ago
Easy to improve our knowledge.
1 hour = 3600 secs.
1 km = 1000 m.
3600/1000 = 36/10 = 5/18.
60*5/18*9 = 150 m.
1 hour = 3600 secs.
1 km = 1000 m.
3600/1000 = 36/10 = 5/18.
60*5/18*9 = 150 m.
Vino said:
9 years ago
It's very useful. Thank you.
Rasika said:
9 years ago
Nice explanation Sundar, very helpful.
SunnYnikkS said:
9 years ago
Ya, now all the people can solve these type of questions.
Test said:
9 years ago
ta, now all the people can solve these type of questions.
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