Solve this Mathematical Problem – $20 + Project

Hi All,
I am looking for someone to solve a mathematical problem for me ($20) and an additional ($30) if they can convert it into a calculator in Excel.
The first person to PM me the correct answer with workings on how they reached the answer will receive the $20. They will then receive an additional $30 if they can convert it (plus a few more variables) into an Excel File.
Here goes:
Usain Bolt is lining up to run in the 2016 Olympic Mens 100m final. He is the $2.00 favourite (in a 100%…
Solve this Mathematical Problem – $20 + Project

See original post by Jake Howard