Answer:
the number of miles run on Thursday is 5.60 miles
Explanation:
The computation of the number of miles run on Thursday is shown below
Here we assume the number of miles be x
3 ÷ 4 ÷ 1 = 4.2 ÷ x
3 ÷ 4 ÷ x = 4.2
3x = 16.8
x = 5.6
Hence, the number of miles run on Thursday is 5.60 miles