Convert 25 m/s to km/h.
90 km/h
60 km/h
50 km/h
30 km/h
As we know that
Speed =$\frac{\text { Distance }}{\text { Time }}$
Where speed = 10 km/h and distance = 200 km
$\therefore \quad 10=\frac{200}{\text { Time }}$
$\therefore \quad$ Required time = 20 hours.