Aptitude - Problems on Trains - Discussion
Discussion Forum : Problems on Trains - General Questions (Q.No. 16)
16.
A train travelling at a speed of 75 mph enters a tunnel 3
miles long. The train is 
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?
miles long. The train is 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?Answer: Option
Explanation:
| Total distance covered |
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 Time taken |
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| = 3 min. |
Discussion:
129 comments Page 1 of 13.
Sharan said:
2 decades ago
1mile=?km
Sundar said:
2 decades ago
1 mile = 1.60934 km.
Ghousia said:
2 decades ago
How 15/(4*75) hrs?
Deepti said:
1 decade ago
Time = Distance/ Dpeed.
Speed= 75 mph, distance= 15/4.
Speed= 75 mph, distance= 15/4.
ERRER said:
1 decade ago
Explain how 7/2?
Priyavel said:
1 decade ago
@Errer
We convert mixed fraction into proper fraction
( 3*2=6+1=7)
We convert mixed fraction into proper fraction
( 3*2=6+1=7)
Pasha4u said:
1 decade ago
Please can any one explain it ?
Sree said:
1 decade ago
Please explain clearly how 7/2?
Viswam said:
1 decade ago
See this link: http://www.mathsisfun.com/mixed-fractions.html
Gaurav said:
1 decade ago
I think the total distance = 7/2 + 1/4 + 1/4 = 4 miles as the summation of length of the tunnel, length of train when it enters and length of train when it emerges out should be taken.
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