To understand the output of the program, let’s analyze the provided code snippet step by step:
-
The program takes an input from the user, which we are told is
25
. -
The condition being evaluated is:
IF num > 20 AND num < 22
-
We need to check if the condition is true when
num
is25
:num > 20
evaluates totrue
(since 25 is greater than 20).num < 22
evaluates tofalse
(since 25 is not less than 22).
-
Since the condition uses the
AND
operator, both parts must be true for the overall condition to be true. In this case, one part is true and the other is false, meaning the overall condition evaluates tofalse
. -
Given that the condition is false, the program will execute the
ELSE
block, which outputs:OUTPUT "Invalid."
Therefore, since the user enters 25
, the output of the program will be:
Invalid.