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# How many ways can four married couples sit on a park bench

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Director
Joined: 07 Nov 2004
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How many ways can four married couples sit on a park bench [#permalink]  08 Dec 2004, 15:58
How many ways can four married couples sit on a park bench if every husband and wife must sit together?
Intern
Joined: 26 Nov 2004
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4!*2^4...did i miss something
Director
Joined: 07 Nov 2004
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foraj wrote:
4!*2^4...did i miss something

Director
Joined: 16 Jun 2004
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My understanding is..
1. group the pairs . We will have 4 pairs of husbands and wifes and they can be arranged in 4! ways.
2. Each pair can be arranged in 2! ways.

So 4!*2!*2!*2!*2! = 24 *16 = 384
Director
Joined: 07 Nov 2004
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thanks, get it now!
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