alleryIf the product of two whole numbers is 0, what must be true?
ABoth numbers are 1
BAt least one number is 0
CThe numbers are equal
DBoth numbers are even
Answer & Solution
Correct answer: B. At least one number is 0
1. Suppose a x b = 0 for whole numbers a and b.
2. Then a = 0 or b = 0 (or both).
3. Equal numbers, such as 3 and 3, give 9, so equality is not required.
_Source: Wikipedia, Natural number, Algebraic properties satisfied by the natural numbers_
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