tag:blogger.com,1999:blog-15628310.post6084712428479540662..comments2021-03-02T05:02:26.838-05:00Comments on Question of the day: Locked Drawers and Lost FilesAnonymoushttp://www.blogger.com/profile/18153935609499338685noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-15628310.post-49087392962852528602008-01-13T10:29:00.000-05:002008-01-13T10:29:00.000-05:00The answers to the three questions are 7/9, 2/3 an...The answers to the three questions are 7/9, 2/3 and 1/3, respectively. <BR/><BR/>The chances actually decrease for every drawer you fail to find it in. The probability is (8-n) / (10-n).<BR/><BR/>This is a decreasing function of n for n < 10.<BR/><BR/>With K drawers to go, of which two are unavailable, the probability of a successful outcome is (K - 2)/K. With K = 10 - n, this reduces to (8 - n)/(10 - n).Anonymoushttps://www.blogger.com/profile/18153935609499338685noreply@blogger.com