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:
592 comments Page 14 of 60.

Samridhi said:   3 years ago
Speed = 60 km/hr= 60* (5/18) m/s = 16.67 m/s.
Time= 9 sec.
Distance = speed* time.
Distance = 16.67 * 9 =150m.
(8)

Ankit kumar said:   1 year ago
60*9/18.
50/3.
50/3*9.

= 150 Ans.
(8)

Nithi said:   11 months ago
According to me, the right answer should be 150.
(8)

Karthick said:   2 decades ago
Nice explanation for beginners.
(7)

Kalimuthu said:   1 decade ago
1000m=1km so 60000m goes in 1hour.
1 hour=3600 sec so 60000/3600 =16.666 so train cross in 1 second is 16.666m...so 9 seconds 16.6666*9=150meter .
(7)

Swarit said:   3 years ago
60*5/18 = 50/3.
50/3 *9,
Then 50*3.
Answer = 150.
(7)

Nathiya.S said:   3 years ago
Thanks for all, it's a great explanation and it is very useful to me.
(7)

BikramTisso said:   3 years ago
Thanks for the explanation @Kenshika venistran.
(7)

PrabuS said:   1 year ago
60km/hr = 5/18 * 60 m/s = 50/3 m/s.
50m/s means 50 metres for 3 seconds,
Then for 9 seconds - 150 metres.
(7)

Kopila said:   3 months ago
@All.

The answer here calculated is the distance of the train travelled in 9 seconds right, then how can you claim it as the length if the train?
(7)


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