Is n even?

1. n/2 - 1 is odd
2. 2n + 1 is odd

1. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient
2. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient
3. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient
4. EACH statement ALONE is sufficient
5. Statements (1) and (2) TOGETHER are NOT sufficient

Westville and Eastown are 55 miles apart. Derek sets off from Westville at 1pm travelling towards Eastown at an average speed of 60 miles per hour. Emily sets of from Eastown at 1:10pm and drives towards Westville at an average speed of 40 miles per hour. At what time will they pass each other on the road between Westville and Eastown?

1. 1:27pm
2. 1:30pm
3. 1:33pm
4. 1:37pm
5. 1:43pm

The square ABCD has sides of length 4. Point E is half way between A and D, point F is half way between B and C and point G is half way between E and F. What is the area enclosed by the polygon ABCDEG?

1. 16
2. 14
3. 12
4. 10
5. 8

If x and y are integers, is x^2 - y^2 divisible by 7?

1. When x - y is divided by 7, the remainder is 2
2. When x + y is divided by 7, the remainder is 5

1. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient
2. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient
3. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient
4. EACH statement ALONE is sufficient
5. Statements (1) and (2) TOGETHER are NOT sufficient