zebibtedros123 zebibtedros123
  • 06-02-2018
  • Mathematics
contestada

how many different ways can four people:andy,betty,cindy, and Doug, sits in a row at the opera if Andy and betty must sit together?

Respuesta :

Аноним Аноним
  • 06-02-2018
They can sit together in 12 different configurations:

ABCD 
CDAB 
CABD 
DABC 
BACD 
CDBA 
CBAD 
DBAC 
ABDC 
DCAB 
BADC 
DCBA
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shymere181ozkih1 shymere181ozkih1
  • 06-02-2018
they can sit may ways but 12s the answer.
Answer Link

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good job