How many ways can 3 dating couples be seated in a row of 8 chairs if no one sits in between other couple?

How many ways can 3 dating couples be seated in a row of 8 chairs if no one sits in between other couple?

How many ways can 3 dating couples be seated in a row of 6 chairs if no one sits in between other couple?

How many ways are there to cover 2 chairs of a row of 8 chairs?

not sure sorry

One Response to “How many ways can 3 dating couples be seated in a row of 8 chairs if no one sits in between other couple?”

  1. Ƹ̵̡Ӝ̵̨̄Ʒ Change Ƹ̵̡Ӝ̵̨̄Ʒ on October 9th, 2010 at 2:52 am

    not sure sorry
    References :

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