Answer:
Step-by-step explanation:
Considering a couple to be a single object i.e. 2 people as 1
In this way there are 5 object
No of ways in which 5 objects can be arranged is 5!
Husband and wife can be arranged in 2! ways
so total no of ways such that husband must be next to their wives
is [tex]=2!\times 5![/tex]
[tex]=240\ ways[/tex]
