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:
587 comments Page 39 of 59.

Sada said:   9 years ago
@Muhammad.

This explanation is good and useful for beginners. Thankyou.

Suresh said:   9 years ago
10/36 m/s

= 5/18 m/s.

Therefore 1 km/hr = 5/18 m/sec.

Similarly 60 km/hr = 60 x 5/18 m/sec.

I'm not understanding this section, please explain.

Makvana Disha said:   9 years ago
@Vishnu.

The value of N = 134.44.

Shri said:   9 years ago
@Kalimuthu.

Short, simple and logically understandable answer .

Afzal said:   9 years ago
Hello @Sundar,

I'm not understanding this 1 km/hr = 1000/3600 m/s.

But.

How come this?

= 10/36 m/s.
= 5/18 m/s.

Please explain.

Datta pawar said:   9 years ago
First convert value:

60km = 60000mtr.
1 hour = 3600sec.

Calculation.

60000/3600 = 16.666 mtr/sec (this value for only one meter).
So 9 * 16.666 = 150mtr.

Gnanavel said:   9 years ago
If they asking to find the length of the pole, then how to solve it?

Vikas prasad said:   9 years ago
I can't solve the problem and also can't read it properly what can I do?

I.mahindra reddy said:   9 years ago
Nice and clear explanations. Thank you all.

Srinivasan said:   9 years ago
60000m = 6km.


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