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:
643 comments Page 15 of 65.

Raj said:   3 years ago
@All.
speed(60)*1000(KM convert to meters)/3600(Hoursconvrt to sec)
->60*1000/3600 = 60 * 5/18 = 50/3.
(9)

Anil Magar said:   3 years ago
@Anuradha.
= 50/3*9.
= 16.6666667*9,
= 150M answer.
(9)

Saumya tripathi said:   2 years ago
Yes, the answer should be 150.
(9)

Revanth said:   2 years ago
How 5%18 came? could anyone please explain?
(9)

Suraj balaji kshirsagar said:   2 years ago
150 is the correct answer.
(9)

Akhil Joseph K J said:   2 years ago
Calculation: 60× (5 / 18)

Simplify:
(60×5)/18

Cancel common factors:
60 and 18 have a common factor of 6:
(10×6)×5/(3×6)
​
Cancel 6:
(10×5)/3 = 50/3.
(9)

Kamalesh Kamalesh said:   1 year ago
Agree, 150 is the correct answer.
(9)

Gayathri avula said:   4 months ago
Very useful. Thanks all for explaining.
(9)

Karthick said:   2 decades ago
Nice explanation for beginners.
(8)

Kalimuthu said:   2 decades 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 .
(8)


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