Answer:
Mary runs 10.8 km daily except Sunday.
Explanation:
Mary doesn't run on Sundays and per week she still covers 65.1 km of running equal on each day.
Number of days Mary run = 7-1 = 6 days
Total distance covered all day = 65.1 km
We have to find distance she runs on each day consistently.
Let the distance she runs on each day be "x" km.
Accordingly:
⇒ If we divide the total distance with total number of days we can find the her running distance for each day.
So,
⇒

⇒

⇒
km
Mary runs for 10.8 km each day except Sunday.