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 41 of 59.
Shashi kant gupta said:
9 years ago
1hr = 60min and 1km = 1000m.
Let 1min = 6km.
And 1min = 60sec.
1000/60 = 16.6.
16.6 * 9 = 150m.
This is the answer.
Let 1min = 6km.
And 1min = 60sec.
1000/60 = 16.6.
16.6 * 9 = 150m.
This is the answer.
Lovepreet singh said:
9 years ago
Well explained @Sundar and @Kalimuthu.
Padmalochan said:
9 years ago
Why you multiply 5 in 60? How you found 5?
Parth said:
9 years ago
60min -> 60km.
1min ->1km.
10sec ->166.
So, 9sec -> 149.5.
1min ->1km.
10sec ->166.
So, 9sec -> 149.5.
Sathya said:
9 years ago
10/36 = 5/18.
If both numerator and denominator can divide by a Single number, then you can divide it.
Here in above problem 10 and 36 both are dividing by 2, that's why the answer is 5/18.
If both numerator and denominator can divide by a Single number, then you can divide it.
Here in above problem 10 and 36 both are dividing by 2, that's why the answer is 5/18.
Sagar said:
9 years ago
1 Hour = 60 Min.
1 Min = 60 Sec.
(Min * Sec = 60 * 60 = 3600).
3600 Sec= 60KM.
9 Sec = ?
60 * 9/3600= 0.15.
So, As per the Option Length is 150 MTR.
1 Min = 60 Sec.
(Min * Sec = 60 * 60 = 3600).
3600 Sec= 60KM.
9 Sec = ?
60 * 9/3600= 0.15.
So, As per the Option Length is 150 MTR.
Sathiyaraj said:
9 years ago
Cross 60000(60 km) meters in 3600 seconds(1 hour).
60,000 m => 3600 seconds,
100 m => 6 seconds,
Hence 3 sec => 50 m,
So, 100 + 50 mts = 150 m (6 + 3 = 9 seconds).
60,000 m => 3600 seconds,
100 m => 6 seconds,
Hence 3 sec => 50 m,
So, 100 + 50 mts = 150 m (6 + 3 = 9 seconds).
Swathi shetty p said:
9 years ago
Thanks to all.
Akash said:
9 years ago
I agree with you @Satyapal.
Bhiva said:
9 years ago
Nice explanation @Parth.
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