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A class photo is being taken of six students, sitting in a row.   Jamie wants to sit next to Marshall. How many arrangements are possible?

 Nov 18, 2020
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Jamie and Marshall can sit  2 ways  in any two  seats  and they can sit in seats   12, 23, 34, 45, 56  (5 ways)

 

The other student can  be arranged in 4!  ways for each of these

 

So.... the total possible  arrangements are    2 * 5 * 4!  =  10 * 24  =   240

 

 

 

cool cool cool

 Nov 18, 2020

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