Need help quickly! My math skills are escaping me!

[Edwina Broussard]

If I have 13 participants attending new hire class. 3 of them did not pass, 10 passed successfully. What is the percentage of success? What is the ratio of success? I don't believe there is a ratio, I could be wrong. Probably so, math does not agree with me! Please help!

Thank you!

 

[math_celebrity]

Success Percentage: 3/13 = 0.2308 = 23.08%
Success to failure ratio = 3:10