Subject
Quantitative Aptitude
Topic
Speed & Distance
A train travelling at a speed of 75 mph enters a tunnel 3(1/2) miles long. The train is (¼) 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?
A train travelling at a speed of 75 mph enters a tunnel 3(1/2) miles long. The train is (¼) 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?
ক)
2.5 minখ)
3 minগ)
3.2 minঘ)
3.5 minExplanation
Total distance covered =(7/2) + (¼) miles = 15/4 miles. So, Time taken = (15/(4 x 75)) = 1/20 hrs =1/20 hrs. =((1/20) x 60) min. = 3 min.Related questions
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