The solution can be obtained as follows:
We are given the speed of the ship as 20 km/h
Time taken by ship to travel is 4h.
We will apply speed distance formula here given by:
[tex]speed=\frac{distance}{time}[/tex]
So here we will plug in the given values to find the distance covered by the ship:
[tex]20=\frac{distance}{4}[/tex]
Distance = 80 km
Answer: The distance traveled by the ship is 80 km.