I think it is non-statistical as it has only one possible answer
A^2 + B^2=C^2 so there for the hypotenuse (13^2) - (5^2) will give you the last side
Try this solution, it consists of two parts (MN=8).
First off, we'll convert the mixed fraction to "improper" and check about, keeping in mind that, there are 5280 feet in 1mile.

Convert to hours, then days, then years
60 minutes per hour
1000000/60=50000/3=16666.7 hours
24 hours per day
16666.7/24=694.4 days
365 days per year
694.4/365=1.9
the average person lives at least 1.9 years
maybe, I guess