Answer :
Remember that the speed is the ratio between a distance traveled and the time it takes to travel that distance:
[tex]s=\frac{d}{t}[/tex]Isolate t from the equation:
[tex]t=\frac{d}{s}[/tex]Substitute d=1818m and s=18 m/s to find the time that it will take for the car to travel that distance:
[tex]t=\frac{1818m}{18m/s}=101s[/tex]Therefore, the car will travel 1818 meters at a speed of 18m/s in 101 s.