Answer
The person has covered a distance of 4.8 kilometers.
Work Step by Step
We can find the total distance in meters.
$6\times 800~m = 4800~m$
We know that 1 km = 1000 m
We can convert the distance to units of km. We need to move the decimal point 3 places to the left.
4800 m = 4.8 km
The person has covered a distance of 4.8 kilometers.