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|dw:1440432029210:dw|

I don't quite get the Q-:( In how many ways you can place them `in a circle`?

yes this one ^

do u understand now ?

but did u understand the question

imquerty did u understand the question

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|dw:1440433349497:dw|

is the answer \(8!\)

it is given 7!

so i was right then?
you are asking about the number of all possible permutations of these objets

wait, you are saying now the answer is actually 7!, (not 8!) ?

book says 7!

Are these two considered same ?
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|dw:1440434088056:dw|

yes i think

found this http://mathworld.wolfram.com/CircularPermutation.html

ok, fits:)