I've been trying to track down an old Ronnie Barker sketch where he is (possibly) the minister for people who have lost their memories-or something like that. At one point he breaks a housebrick in...
For some obscure reason I need to find out how many different arrangements of 4 letters I can choose from the the letters of SLEEPY SENATE. Once again I find myself in disgreement with the book. As I...
A committee of 4 is to be selected from 6 Aussies and 5 Kiwis. If there must be at least 2 Aussies on the committee, how many different commitees can be formed? If I consider the cases of 2 Aussies...