Three married couples sit in a row. Find the probability that no husband sits with his wife.

Explanation

To solve the problem of finding the probability that no husband sits next to his wife when three married couples sit in a row, we will follow these steps:

### Step 1: Calculate the Total Number of Arrangements
The total number of arrangements of 6 people (3 couples) sitting in a row is calculated using the factorial of the number of people.

\[ \text{Total arrangements} = 6! = 720 \]
...