Question 907666
That rate is walking, NOT running.


Whatever the classification:


{{{(1&3/4)/1=(3&1/8)/x}}}, using x for time in hours.  Just a proportion, using mixed numbers and whole number.  Change mixed numbers into improper fractions!


{{{(7/4)/1=(25/8)/x}}}


{{{7/4=25/(8x)}}}


{{{x(7/4)=x*25/(8x)}}}


{{{x(7/4)=25/8}}}


{{{x=(25/8)(4/7)}}}


{{{x=25/(2*7)}}}


{{{highlight(x=25/14)}}}

About 1 hour 47 minutes