Answer:
The difference (in km) between what Kayden ran and what Jayden ran is, 7.867 km.
Explanation:
The information provided is as follows:
- Kayden ran 8 km.
- Cayden ran half of distance Kayden ran.
- Isaac ran 1/5 of the distance Cayden ran.
- Jayden ran 1/6 of what Isaac ran.
So, using the given information it can be said that Cayden ran 4 km.
Then the distance Isaac ran is,
.
Then the distance Jayden ran is,

Compute the difference (in km) between what Kayden ran and what Jayden ran as follows:

Thus, the difference (in km) between what Kayden ran and what Jayden ran is, 7.867 km.