Answer:

Explanation:
Let the 5 Numbers be:

The sum of these 5 numbers are:

Given in the statement, we now have

⇒

The product of the greatest and the least numbers of the series
=

=
-

=

By the statement
=
Substituting


⇒

⇒

⇒

⇒
±

Now, taking both
and
we get the following:
