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:
597 comments Page 24 of 60.

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.

Dinesh said:   1 decade ago
It has come approximately 150.03 is this correct or exact answer should be 150.

Without formula said:   8 years ago
@Aditya.

15%+55% = 70,
30%?
12750÷ 30 = 425*70 = 29750 + 12750 = 42500ans.

Janeth said:   1 decade ago
@Jayath how about -14x/100. I do not understand. Where did you get the number?

Murali said:   3 years ago
Length = time/speed.
= 9sec/60kmhr.
= 0.15km = 150meter.
(49)


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