Answer:
Distance covered by Reuben jogging in 4 calendar weeks = 61.2 miles
Explanation:
Distance covered by Reuben jogging every weekday = 2.25 miles
Distance covered by Reuben jogging every weekends is 1.8 times as far as he covers in weekdays to nearest hundred.
To find Reuben jogs in 4 calendar weeks.
Solution:
Distance covered by Reuben jogging every weekends = 

There are 5 weekdays in a week.
Thus, total distance traveled in weekdays = 

Distance jogged in a week = 

Using unitary method to find distance jogged in 4 weeks.
If Reuben jogs 15.3 miles in a week
Thus, in 4 weeks he will jog = 
