Here's my issue:
Let's take, for example, the following problem
If m is an integer, is m odd?
(1) m/2 is not an even integer
(2) m-3 is an even integer
This is quite simple to answer:
(1) If m/2 is not an even integer then it's either not an integer or it's an odd integer so statement 1 is NOT sufficient
(2) If m-3 is even then m must be odd so statement 2 IS sufficient
So the answer is "B) Statement 2 alone is sufficient, but statement 1 is not"
But what if statement (2) would look like this:
(2) m-2 is an even integer
In this case m must be even for obvious reasons. The way I see it is that I have found out that m is NOT odd (the question being 'Ãs m odd?') but I don't know whether I should mark down the same answer as above (B) or E.
Let's take, for example, the following problem
If m is an integer, is m odd?
(1) m/2 is not an even integer
(2) m-3 is an even integer
This is quite simple to answer:
(1) If m/2 is not an even integer then it's either not an integer or it's an odd integer so statement 1 is NOT sufficient
(2) If m-3 is even then m must be odd so statement 2 IS sufficient
So the answer is "B) Statement 2 alone is sufficient, but statement 1 is not"
But what if statement (2) would look like this:
(2) m-2 is an even integer
In this case m must be even for obvious reasons. The way I see it is that I have found out that m is NOT odd (the question being 'Ãs m odd?') but I don't know whether I should mark down the same answer as above (B) or E.












