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?
120 metres
180 metres
324 metres
150 metres
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:
626 comments Page 26 of 63.

SRKS said:   7 years ago
If you will convert Speed of the train which is 60km/hr.
Then it will be ( 150/9)m/sec,
You get the answer directly which is 150m.

Koushik Reddy said:   7 years ago
Why we used 5|18 can you please explain it.

Savita said:   7 years ago
Nice explanation. Thanks all.

Bahauddin said:   7 years ago
Some thing is missing in the question and solution because if train crosses the pole means train will has to cross the extra length as much the length of train.

Thiru said:   7 years ago
36sec ---> 600m.
9sec ------> 600 * 9/36 = 150meters.

Zuberali said:   7 years ago
Best and easy explanation, thanks @Sundar.

Pallavi said:   7 years ago
Explanations are very clear to understand. Thanks all.

Evan said:   7 years ago
Thanks all for the explanation.

Sana said:   7 years ago
Nice explanation, thanks all for explaining.

Sk Anwar said:   7 years ago
Change the km/hr to m/sec using:

0.278*60=16.68;
16.68*9=150.12,
Answer is near the 150.


Post your comments here:

Your comments will be displayed after verification.