bartshan-83 Posted August 4, 2010 Share Posted August 4, 2010 PREVIOUS: They all contain a three-letter sequence of adjacent letters of the alphabet in reverse order. ENVIRONMENT BEDCOVERS RESPONSIBILITY OUTSOURCE CONFEDERACY SLUGFEST JIHAD NUNAVUT Apologies if you think that was kind of stupid...I don't always look at the answer before I post them. TODAY: A train that is 1 km long is moving along a straight track toward a tunnel that is 1 km long. The train travels at 30 km/h. How many minutes does it take the train to go completely though the tunnel? Link to comment Share on other sites More sharing options...
linksfiend Posted August 4, 2010 Share Posted August 4, 2010 Ans: 4 min = 2 min for front end to travel the length of tunnel at which point the back end is flush with the tunnel entrance so another 2 min for back end to travel the length of the tunnel Link to comment Share on other sites More sharing options...
McBeane Posted August 4, 2010 Share Posted August 4, 2010 Ans: 4 min = 2 min for front end to travel the length of tunnel at which point the back end is flush with the tunnel entrance so another 2 min for back end to travel the length of the tunnel That's what I got too. This was one of the easier ones. As for the one yesterday... wow, I would have never thought of that. Link to comment Share on other sites More sharing options...
HopsGuy Posted August 4, 2010 Share Posted August 4, 2010 30 km/hr = 0.5 km/min Caboose has to travel 2 km for the total "trip" through the tunnel, so 2 km/(0.5km/min) = 4 min. I still can't believe that 1980 was 30 years ago. Link to comment Share on other sites More sharing options...
Recommended Posts