Question

Asked Apr 28, 2019

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Hi. Can I get help how to figure this out? Thanks.

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Step 1

**Given information:**

A group of 10 friends consists of 5 married couples.

From this it can be said that, 5 friends went to movie with their spouse.

Step 2

**Find the number of different ways in which 5 couples sit in a row where each couple sits together.**

If each couple is treated as a single unit, then the 5 couples can be seated in 5! Ways.

Spouses can switch seats but still sit together, then each couple can b...

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