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:
609 comments Page 24 of 61.

Shamanth said:   2 years ago
Simple and.

Speed = distance/time.
60 = distance/9.
Distance = 60 * 9,
Distance = 150.
(16)

Rita said:   2 decades ago
Very well explained Sundar. Thanks a lot for helping us with your valuable explanation
(2)

Srikanth said:   1 decade ago
Velocity = distance/time.

Distance = velocity*time.

= 60*(0.27)(9).

= 150 m/s.

Atul said:   1 decade ago
1hr = 60Km.

3600sec = 60000 m.

1sec = 60000/3600 = 50/3.

9 sec = (50/3)*9 = 150m.

Irine said:   8 years ago
I have one doubt.

Why don't you change 9sec into hours and then calculate distance?

Elamathi.A said:   1 decade ago
A bus crossing a 42 kilometers in 50 minutes. What is the average speed of the bus?

Vikas Prasad said:   9 years ago
I am not able to solve the problem. Please help me by explaining the simple method.

Iram said:   1 decade ago
How its possible L = 60*5/18*9 = 60-5/2?

In this 2 is where from come give reply?

Naveen said:   2 years ago
60 * 60 = 3600,
1000/3600 = 5/18,
60Km/hr.
1km = 1000m,
1hr = 60min.
1sec = 60sec.
(14)

Padma said:   9 years ago
I cannot understand this problem (6 * (5/18) * 9) = 150. Pease explains briefly.


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