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:
608 comments Page 46 of 61.

Pratiksha said:   9 years ago
It's really a nice explanation. It really helpful for beginners. I understood easily. Thank you all.

G hari krishna said:   9 years ago
You all converted km --> m. Why don't you convert seconds into hours?

Then S=d/t,
Then D=s*t.
But t=9 sec.

If we convert it into hours form we will get 1/400.
Then d=60*1/400.

Is it correct method. Let me explain in this way guys.

Radhakrishnan L said:   9 years ago
Thank you for all your answers.

Mohd Siddique said:   9 years ago
Thanks for explanation.

Teja said:   9 years ago
@Sundar, @Kalimuthu & @Sungathan.

Really great explanation. Thank you all for your explanations.

Dillip kumar said:   9 years ago
Well explained, Thanks @Sundar.

Sai lakshmi said:   9 years ago
I agree @Pradeep.

Renu patel said:   9 years ago
Really great explanation of the solution. Thank you all.

AMOD KULKARNI said:   9 years ago
I easily understand the conversion. Thanks for the given explanations.

Vikas said:   9 years ago
If you divide 1000/3600 = 0.27.

But it is showing 10/36 after that 5/18.

I am not understanding how it came 10/36 then 5/18?

Please help me by explaining it.


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