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 25 of 59.

Sagar said:   9 years ago
1 Hour = 60 Min.
1 Min = 60 Sec.

(Min * Sec = 60 * 60 = 3600).
3600 Sec= 60KM.
9 Sec = ?

60 * 9/3600= 0.15.

So, As per the Option Length is 150 MTR.

Swathi shetty p said:   9 years ago
Thanks to all.

Sathiyaraj said:   9 years ago
Cross 60000(60 km) meters in 3600 seconds(1 hour).

60,000 m => 3600 seconds,

100 m => 6 seconds,

Hence 3 sec => 50 m,

So, 100 + 50 mts = 150 m (6 + 3 = 9 seconds).

Akash said:   9 years ago
I agree with you @Satyapal.

Bhiva said:   9 years ago
Nice explanation @Parth.

Ranganath.S.J said:   9 years ago
Very nice explanation. Thank you to all.

Angelina said:   9 years ago
Easy to understand this method very nice explanation. Thank you to all.

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

Rupesh said:   9 years ago
Very good explanation @Sundar. Thank you.

Ravi said:   9 years ago
Awesome explanation @Sundar.


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