Happy Cinco De Mayo!!!

Happy Cinco De Mayo!!! Admissions counselors make the sexiest models. Check out these t-shirts, which were made by the good folks in LUChA. Awesome. Math question: if Salvador and Amy each read 922 applications, and we received 10,500 applications this year, what is the probability that one of them read your application (assuming you were in the applicant pool)? Knowing that each app gets two reads, what is the probability that both of them read your application? Those are easy, right? Okay, reading season lasts from early November through late February (for this problem well say November 1 through February 28.) Salvador takes 5 days of vacation in December and 2 days in Janurary. Amy takes 3 days of vacation in November, 1 in December, 2 in January, and 1 in February. All else being equal for applications for which Salvador and Amy are the two readers, what is the probability that Salvador read a given application before Amy? First person to answer correctly gets a prize. Then again, how would I even know what the correct answer is? Hehe. Edit: okay, first person to provide an answer (with documented process) that gets a stamp of approval from Keith gets the prize.