general Maths Puzzle

Kate, Demi, Madona, Sharon, Britney and Nicole decided to lunch together in a restaurant. The waiter led them to a round table with six chairs.
How many different ways can they seat?

Read Solution (Total 4)

No arrangements in circular fashion is (n-1)!
So, it is (6-1)! = 5! = 120 ways.
15 years agoHelpfull: Yes(8) No(5)

6! i.e. they can sit in 720 ways.....
15 years agoHelpfull: Yes(6) No(5)
6 people arrange with respect to chairs not with respect to themselves.hence it is 6!=720 ways
10 years agoHelpfull: Yes(4) No(0)
circular table so circular arrangement then (n-1)!=(6-1)!=5!=120
9 years agoHelpfull: Yes(0) No(0)

general Other Question

An anthropologist discovers an isolated tribe whose written alphabet contains only six letters (call the letters A, B, C, D, E and F). The tribe has a taboo against using the same letter twice in the same word. It's never done.

If each different sequence of letters constitues a different word in the language, what is the maximum number of six-letter words that the language can employ? 3 blocks are chosen randomly on a chessboard. What is the probability that they are in the same diagonal?