BTGmoderatorDC wrote:If a and b are integers, is a + b + 3 an odd integer?
(1) ab is an odd integer.
(2) a − b is an even integer.
a+b+3 = ODD only if a and b are both odd or both even.
Question stem, rephrased:
Are a and b both odd or both even?
Statement 1:
ab = ODD implies that a and b are both odd.
Thus, the answer to the question stem is YES.
SUFFICIENT.
Statement 2:
a-b = EVEN implies that a and b are either both odd or both even.
Thus, the answer to the question stem is YES.
SUFFICIENT.
The correct answer is
D.
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