M mattchan Member Joined Jul 23, 2004 Messages 166 Gender Male HSC 2005 Jun 15, 2005 #1 In how many ways can the letters of the word AUSTRALIA be arranged as to have only two A's together. Thankyou in advance
In how many ways can the letters of the word AUSTRALIA be arranged as to have only two A's together. Thankyou in advance
M mattchan Member Joined Jul 23, 2004 Messages 166 Gender Male HSC 2005 Jun 15, 2005 #2 lol, forgot to even write the answer, its 30240
FinalFantasy Active Member Joined Jun 25, 2004 Messages 1,179 Gender Male HSC 2005 Jun 15, 2005 #3 mattchan said: In how many ways can the letters of the word AUSTRALIA be arranged as to have only two A's together. Thankyou in advance Click to expand... 3P2 ways to have 2 A's together den 7 remaining stuffs 3P2*7! should be it
mattchan said: In how many ways can the letters of the word AUSTRALIA be arranged as to have only two A's together. Thankyou in advance Click to expand... 3P2 ways to have 2 A's together den 7 remaining stuffs 3P2*7! should be it
Trev stix Joined Jun 28, 2004 Messages 2,037 Location Pine Palace, St. Lucia, Brisbane. Gender Male HSC 2005 Jun 15, 2005 #4 Dang, I really suck at perms and combs haha
FinalFantasy Active Member Joined Jun 25, 2004 Messages 1,179 Gender Male HSC 2005 Jun 15, 2005 #5 lol i suck at dem too, i suck at the whole topic "Probability", including perms\combs\other stuffs related just hate probability!!
lol i suck at dem too, i suck at the whole topic "Probability", including perms\combs\other stuffs related just hate probability!!
currysauce Actuary in the making Joined Aug 31, 2004 Messages 576 Location Sydney Gender Male HSC 2005 Jun 15, 2005 #6 8! - 2 x 7! = 30240 8! as u count one set of A's as one unit 7 spots left... yadda yadda