She travelled in one third of time=160km
Total distance=160×3=480km
Time=6h
[tex]\\ \bull\tt\dashrightarrow Velocity=\dfrac{Displacement}{Time}[/tex]
[tex]\\ \bull\tt\dashrightarrow Velocity=\dfrac{480}{6}[/tex]
[tex]\\ \bull\tt\dashrightarrow Velocity=80km/h[/tex]
