lheiannie07 wrote:If a*b is an even integer, is b a multiple of 2?
(1) a is not a multiple of 2.
(2) b is product of two consecutive integers.
I'm quite confused about the statements, isn't Option D the right answer?
OA B
Statement 1 itself is not sufficient.
Case 1: a = 2/3 and b = 3, then a*b = 2/3*3 = 2; thus, b is NOT a multiple of 2. The answer is No.
The question does not say that a and b are integers. They are numbers.
Case 2: a = 3 and b = 2, then a*b = 3*2 = 6 (even); thus, b is a multiple of 2. The answer is Yes.
Insufficient.
The correct answer:
B
Hope this helps!
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