**Solution:**

The total new employees

Therefore, they can be arranged in Ways

In 5 ways two adjacent desks for married couple can be selected that is

In 2! Ways the married couple can be arranged in the two desks

In 4! Ways the other four persons can be arranged.

Therefore, the no. of ways in which married couple occupy adjacent desks

Therefore, no. of ways in which married couple occupy non-adjacent desks

The required Probability