Question 1195979
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John starts driving at a constant rate of 55 mph. Two hours later Lauren starts driving at a constant rate of 62 mph. At what time and how many miles will they meet? 
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You are forcing the reader to make assumptions.  Best assumption is that John and Lauren started from the same departure location. Lauren left later and catches-up.


During first two hours, John traveled 110 miles.  Lauren then began and her approach rate to John 
was 62-55=7 miles per hour.  


How much time for Lauren to cover the 110 mile difference?
{{{7x=110}}}

{{{x=110/7}}}

{{{x=15&5/7}}}
About 15 hours 43 minutes