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Mathematics 16 Online
OpenStudy (anonymous):

In how many ways can A,A,B,B,C,C,D,D,E and E be arranged such that no to consecutive letters are same

OpenStudy (anonymous):

@ParthKohli

OpenStudy (anonymous):

@satellite73 @experimentx @sauravshakya

OpenStudy (experimentx):

try using this http://en.wikipedia.org/wiki/Inclusion%E2%80%93exclusion_principle

OpenStudy (anonymous):

@shubhamsrg

OpenStudy (shubhamsrg):

@shubhamsrg

OpenStudy (experimentx):

I am not sure if this works but it's worth try |dw:1361373173231:dw|

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