Question 1103580
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Let "r" be the speed of the van.


Then the speed of the aircraft is 2r-3 miles per hour.


Your "time" equation is


{{{122/r}}} = {{{238/(2r-3)}}}.    (Each side is the time of the corresponding travel)


Solve for "r". Your first step is to make multi-cross multiplication to rid off the denominator.


The rest is easy.
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