If and are whole numbers, which of the following expressions will always be a whole number?
Options
A
B
C
D
Answer & Analysis
Answer
B
Analysis
Question Analysis
This question tests the understanding of the properties of whole numbers, specifically the closure property under multiplication.
Key Concept Explanation
The closure property of whole numbers under multiplication means that the product of any two whole numbers is always a whole number.
Step-by-step Solution
1. Identify the closure property: The product of any two whole numbers is always a whole number.
2. Evaluate each option:
- Option A: (Subtraction can result in a negative number, which is not a whole number. False)
- Option B: (The product of any two whole numbers is always a whole number. True)
- Option C:
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