Q3:

If k, m, and p are integers, is k – m – p odd?

(1)     k and m are even and p is odd.

(2)     k, m, and p are consecutive integers.

A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.

B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.

C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.

D. EACH statement ALONE is sufficient.

E. Statements (1) and (2) TOGETHER are NOT sufficient.

答案是A,我选的D,为什么2不对？？？请NN解答～

Not NN, but can demonstrate this

for consecutive integers

if K>m>p

K-M is 1         odd

but the p have two possibilities: odd or even

so, the K-M-P can't be sured whether odd or even.

噢，原来如此～谢拉