there are 5 persons which are arranged in the round table. each arrangement is considered different from another when each's positions in an arrangement is different. Howmany are there arrangement.
120
24
60
80
70
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good question from GMATprep
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thephoenix
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ajith
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That statement is ambiguous to me.duongthang wrote:each arrangement is considered different from another when each's positions in an arrangement is different.
Is the question referring to absolute positions or relative positions?
Not quite sure!
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sars72
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ajith, "each's positions in an arrangement is different" seems to imply absolute positions. In that respect, i guess the phoenix's solution is correct.ajith wrote:That statement is ambiguous to me.duongthang wrote:each arrangement is considered different from another when each's positions in an arrangement is different.
Is the question referring to absolute positions or relative positions?
Not quite sure!
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ajith
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In which case, what they meant was a simple circular permutation = (n-1)! = 4!duongthang wrote:answer is 24, but I do not understand. this is from gmatprep. official source
The question is very poorly worded though
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tanviet
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there are 5 persons who seat around round table. How many different arrangement we can have? one arrangement is considered different from other arrangement if position of a person in a arrangement is different from position of that person in other arrangements
120
60
24
80
90
how to solve pls, help
120
60
24
80
90
how to solve pls, help
