Since one pound (1.00 lb) of body fat is equivalent to approximately 3.488 x 10^3 kcal, then 27.9 miles must be covered to burn off one pound.
Energy is defined as the ability to do work. Now we are told that one pound (1.00 lb) of body fat is equivalent to approximately 3.488 x 10^3
kcal.
Hence;
If 125 kcal is burnt by running one mile
3.488 x 10^3 kcal is burnt by running x miles
x = 3.488 x 10^3 kcal * 1 mile/125 kcal
x = 27.9 miles
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