You want to check if a number n is between 10 and 20 (inclusive) or exactly 0. Which condition correctly uses logical operators?

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Python - Operators and Expression Evaluation

You want to check if a number n is between 10 and 20 (inclusive) or exactly 0. Which condition correctly uses logical operators?

Anot (n < 10 or n > 20) and n == 0

Bn >= 10 and (n <= 20 or n == 0)

C(n >= 10 and n <= 20) or n == 0

Dn >= 10 or n <= 20 and n == 0

Step-by-Step Solution

Solution:

Step 1: Understand the condition requirements
The number n should be between 10 and 20 inclusive, or exactly 0.
Step 2: Analyze each option
(n >= 10 and n <= 20) or n == 0 correctly groups the range check with and and then uses or for the zero check.
n >= 10 and (n <= 20 or n == 0) changes the logic, allowing n == 0 to be combined incorrectly.
n >= 10 or n <= 20 and n == 0 mixes operators without parentheses, causing wrong logic.
not (n < 10 or n > 20) and n == 0 incorrectly requires n to be zero and in the range simultaneously.
Final Answer:
(n >= 10 and n <= 20) or n == 0 -> Option C
Quick Check:
Range check with 'and', zero check with 'or' [OK]

Quick Trick: Group range with 'and', combine with 'or' for zero [OK]

Common Mistakes:

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