Question 1203619
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I would like to leave one comment,  regarding this problem.


The distance from  Tokyo  (the capital of Japan)  to  Las Vegas  (the city in the US)
is 8900 kilometers  (according to the  Internet).


So the time of such a flight  is  {{{8900/175}}},  or about  50  hours.


It is written for the future generations of students,  who will read this post,
in order for they could estimate,  if this problem is realistic or not.



Actually, a Math problem doesn't have to be realistic;  but this one,  concretely, 

naming the cities,  pretends to be realistic,  however fails.