Answer:
1 2/3k or 1.666666666...
Explanation:
Take 5k and put it into a fraction (x/5) and put an = and then next to it you put 1/3 (since that is how far he walked). multiply the 1 by the 5 to get 5. then do 5/3. you get 1.6666666666........ or 1 2/3k