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:
619 comments Page 57 of 62.

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

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.

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

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

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

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

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

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.

Savita said:   6 years ago
Nice explanation. Thanks all.

Koushik Reddy said:   6 years ago
Why we used 5|18 can you please explain it.


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