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Mathematics 18 Online
celticcat:

Find the number of different ways in which the 9 letters of the word GREENGAGE can be arranged if exactly two of the Gs are next to each other.

Lionblaze15:

Ggneed Idk

celticcat:

I know its 9!/3! 3! if the exactly 2 G s was not the case.

celticcat:

Right?

Vocaloid:

you're on the right track as a hint, remove the g's first and just consider the letters r,e,e,n,a,a,e then consider how many ways you can put the sequence gg within these letters

celticcat:

OK thanks. Only one a though.

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