Answer:
[tex]27.0ms^{-1}\Rightarrow97.2\operatorname{km}hr^{-1}[/tex]Explanation: Conversion from m/s to km/hr can be done by multiplying by conversion factors that should essentially cancel all m/s units and the result would be in km/hr, this is done as follows:
[tex]\begin{gathered} (\frac{27m}{s})\times(\frac{3600s}{hr})\times(\frac{1\operatorname{km}}{1000m})=\frac{27\cdot3600\operatorname{km}}{1000hr}=97.2\operatorname{km}hr^{-1} \\ \therefore\Rightarrow \\ 24ms^{-1}=97.2\operatorname{km}hr^{-1} \end{gathered}[/tex]