Bird
0
0

Why does the expression True and False or True evaluate to True in Python?

hard📝 Conceptual Q10 of 15
Python - Operators and Expression Evaluation
Why does the expression True and False or True evaluate to True in Python?
ABecause both 'and' and 'or' have equal precedence and evaluate simultaneously
BBecause 'or' has higher precedence than 'and', so it evaluates as True and (False or True)
CBecause Python evaluates left to right ignoring precedence
DBecause 'and' has higher precedence than 'or', so it evaluates as (True and False) or True
Step-by-Step Solution
Solution:

  1. Step 1: Recall operator precedence

    'and' has higher precedence than 'or' in Python.

  2. Step 2: Evaluate expression accordingly

    Evaluates as (True and False) or True = False or True = True.

  3. Final Answer:

    Because 'and' has higher precedence than 'or', so it evaluates as (True and False) or True -> Option D

  4. Quick Check:

    Operator precedence: and > or [OK]
Quick Trick: Remember 'and' evaluates before 'or' [OK]
Common Mistakes:
MISTAKES
  • Assuming 'or' evaluates first
  • Ignoring operator precedence
  • Thinking evaluation is left to right only

Want More Practice?

15+ quiz questions · All difficulty levels · Free

Free Signup - Practice All Questions
More Python Quizzes
Conditional Statements - Why conditional statements are needed - Quiz 14medium Conditional Statements - If statement execution flow - Quiz 12easy Data Types as Values - Boolean values (True and False) - Quiz 7medium For Loop - Iterating over strings - Quiz 12easy Loop Control - Why loop control is required - Quiz 10hard Operators and Expression Evaluation - Membership operators (in, not in) - Quiz 4medium Operators and Expression Evaluation - Identity operators (is, is not) - Quiz 11easy Python Basics and Execution Environment - Python Interactive Mode vs Script Mode - Quiz 1easy Variables and Dynamic Typing - Naming rules and conventions - Quiz 1easy While Loop - Why while loop is needed - Quiz 11easy