Write logical expressions corresponding to the following statements in Python and evaluate the expressions (assuming variables num1, num2, num3, first, middle, last are already having meaningful values):
The sum of 20 and −10 is less than 12.
Expression: (20 + (-10)) < 12 Evaluation: 10 < 12 → True
num3 is not more than 24.
Expression: num3 <= 24 Evaluation: Depends on value of num3 (True if num3 is 24 or less)
6.75 is between the values of integers num1 and num2.
Expression: (num1 < 6.75 < num2) or (num2 < 6.75 < num1) Evaluation: True if 6.75 lies between num1 and num2
The string ‘middle’ is larger than the string ‘first’ and smaller than the string ‘last’.
Expression: middle > first and middle < last Evaluation: True if middle string comes lexicographically between first and last
List Stationery is empty.
Expression: Stationery == [] or len(Stationery) == 0 Evaluation: True if the list is empty
Explanation
This question tests understanding of logical expressions using relational and logical operators in Python. For part (a), arithmetic is performed first, then comparison. Part (b) uses <= operator for 'not more than'. Part (c) requires checking both possible orderings of num1 and num2. Part (d) uses string comparison with 'and' logical operator. Part (e) checks for empty list using equality with empty list or length check. The context confirms that empty collections like [] are False by default, so 'not Stationery' would also work.