alleryWhen is the product of two whole numbers odd?
AWhen both are odd
BWhen one is even
CWhen both are even
DWhen one is zero
Answer & Solution
Correct answer: A. When both are odd
1. The rules are even x even = even, even x odd = even, odd x odd = odd.
2. So only odd x odd gives an odd product.
3. If one factor is even or zero, the product is even.
_Source: Wikipedia, Parity (mathematics), Multiplication_
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