We know that his rate is 4.3 meters per second.
• 1 hour equals 3,600 seconds.
,• 1 kilometer equals 1,000 meters.
Let's transform:
[tex]x=\frac{4.3m}{1\sec}\cdot\frac{3,600\sec}{1hr}\cdot\frac{1\operatorname{km}}{1,000m}=\frac{15,480\operatorname{km}}{1000hr}=\frac{15.48\operatorname{km}}{hr}[/tex]On the other hand, we know that the entire tour is 24 7/10 kilometers long, which is equivalent to 24.7 kilometers.
To find the answer we just have to divide
[tex]t=\frac{24.7\operatorname{km}}{15.48\operatorname{km}/hr}\approx1.60hr[/tex]But, we have to transform 0.60 hours to minutes.
[tex]0.60hr\cdot\frac{60\min}{1hr}=36\min [/tex]