Q10:

In the figure shown, two identical squares are inscribed in the rectangle. If the perimeter of the rectangle is 18√2, then what is the perimeter of each square?

A. 8√2

B. 12 这是答案，但不会做

C. 12√2

D. 16

E. 18

Q26: 不懂？？？？？？？？？？

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.

第二十六题：

设x= 6a

y=14b

因此 xy= 2*3*7c

所以，XY只要是5的倍数，就可以知道它可以被105整除，因此，答案（2）是充分的！