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Aptitude - Problems on Trains - Discussion

Discussion Forum : Problems on Trains - General Questions (Q.No. 16)
Problems on Trains
16.
A train travelling at a speed of 75 mph enters a tunnel 31/2 miles long. The train is 1/4 mile long. How long does it take for the train to pass through the tunnel from the moment the front enters to the moment the rear emerges?
2.5 min
3 min
3.2 min
3.5 min
Answer: Option
Explanation:

Total distance covered
= ( 7 + 1 ( miles
2 4
= 15 miles.
4

Therefore Time taken
= ( 15 ( hrs
4 x 75
= 1 hrs
20
= ( 1 x 60 ( min.
20
= 3 min.

Discussion:
129 comments Page 13 of 13.
Arbaj Tamboli said:   4 years ago
75 mph means 75 miles per hour.
(5)
Milson marcelin said:   8 years ago
No because both are in miles.
Priya said:   9 years ago
Please explain how come 60?
Sundar said:   2 decades ago
1 mile = 1.60934 km.
Ghousia said:   2 decades ago
How 15/(4*75) hrs?
ERRER said:   1 decade ago
Explain how 7/2?
Varsha said:   8 years ago
How 15/4*75 hrs?
Bharath said:   7 years ago
The answer is C.
Sharan said:   2 decades ago
1mile=?km
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