orenken1968 orenken1968
  • 02-12-2017
  • Mathematics
contestada

In how many ways can 4 letters be dropped in 6 mailboxes so that no two letters go in the same box

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Аноним Аноним
  • 02-12-2017
you can cut em in half and then drop them in the mailbox
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Аноним Аноним
  • 02-12-2017
If it doesn't matter which letter goes into which box then  its 6! / 4! 2!  = 15 ways
If it does matter then its 6! / 2! = 360 ways
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