Q3:

What is the remainder when the two-digit, positive integer x is divided by 3 ?

(1) The sum of the digits of x is 5.

(2)The remainder when x is divided by 9 is 5.

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.

答案给的是A。我认为是D

（1）肯定可以。看（2）

最直接的，把所有可能情况列出来：

95，86，.... 23，14，每个除以3，可知余数都是2

高级一点，x＝9k+5, k=1...10 x=3(3k+1)+2

我的想法有问题吗？