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 32 of 59.

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

SRIRAM said:   6 months ago
Why we are calculating 5/18 not 18/5? Please explain it.
(23)

Pooja said:   1 decade ago
Hi.Thank you for guiding students for MCA & MBA...

Reddy said:   1 decade ago
@Rita

Please explain this problem I am not understand.

Sam prakash shine said:   9 years ago
@Suraj.

5/18 is for converting the km/hour into m/sec.

Sarang said:   7 years ago
Distance = speed*time.
60*5/18*9,
60*5/2,
300/2 = 150.

Gowrishankar said:   8 months ago
For km;
a/hr = (a*5%18).

And for m;
a/hr = (a * 18%5).
(2)

Mark said:   1 decade ago
Length of the train = (Speed x Time) = 50x9 m = 150 m.

Pallavi said:   6 years ago
Explanations are very clear to understand. Thanks all.

Alavaala Praveen Kumar said:   3 years ago
60 * 5/18 = 50/3.
50/3 * 9,
Then 50 * 3,
Answer = 150.
(15)


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