If a is at most b for whole numbers, which statement must also be true for any whole number c?
Aa + c is at most b + c
Ba + c is more than b + c
Ca - c is more than b - c
Da + c equals b + c
Answer & Solution
Correct answer: A. a + c is at most b + c
1. The order on whole numbers is compatible with addition.
2. If a is at most b, then a + c is at most b + c, e.g. 2 <= 5 gives 2 + 4 <= 5 + 4.
3. Equality holds only when a equals b, so it is not forced.
_Source: Wikipedia, Natural number, Order_
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