S412263
S412263 S412263
  • 17-11-2018
  • Mathematics
contestada

In how many different ways can 6 books be arranged on a shelf if one of the books, book X, has to be first?

Respuesta :

happystoned happystoned
  • 17-11-2018

6x6=36 but book X has to be first so 36-(5x5)=36-25=11

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