Q24:

If ab = 1, what is the value of (axb)(ayb)?

(1) ax = by = 2

(2) 2xy = 4

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.

Q26:

If positive integer x is a multiple of 6 and positive integer y is a multiple of 14, is xy a multiple of 105?

(1) x is a multiple of 9.

(2) y is a multiple of 25.

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

24，d

26, b

替我都会做，但是我发现一个很严重的矛盾！24题由（1）和（2）推出来的结果不相等，虽然都能推出结果。在这种情况下答案是d

而26题，由（1）推出不是105的multiple，由（2）推出是105的multiple;那末也算是都分别得出结果，只是结果不一样（情况类似24题），但是答案却是b

谁给解释一下，如果由（1）（2）分别能得出结果，但是结果不一样，这种情况下应该选什莫答案？

上面两道题是不是哪个答案错了？

明白啦，多谢！

最后还想确认一下，如24题，（1）（2）分别推出的结果不相等，（只要分别是唯一的），那末就选D。对吗？

你的说法有点欠妥，应该说，只要可以是“确认”的，答案就是成立的。

换句话，不管回答yes or no，都是“确定”的回答，就是正面回答，就应该选。