First, we are going to calculate the total distance that Cody runs in a week as:
Because he runs 4 times a week and every time runs 3/6 of a mile.
It means that he runs 2 miles a week
Now, we need to calculate how many times Arianna runs to cover 2 miles.
So, we need to divide 2 by 4/6 of a mile as:
Therefore, she needs to run 3 times a week to cover 2 miles.
Answer: 3 times