#85   If it takes 7 hours for a Boeing 747 to go from New York to London, and takes a Concorde 3.5 hours to do the same distance.  What is the difference in time if they did two round trips? 

Fascinating fact: The Concorde cruising speed is twice the speed of sound!

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Anonymous said…
another fact about the Concorde is that in October 24 2003 it was grounded for good.
September 6, 2017 at 9:39 AM
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