请教两道数学题，谢谢解答！

1. 答案为A。

The table gives three factors to be considered when choosing an Internet service provider and the percent of the 1,200 respondents to a survey who cited that factor as important.  If 30 percent of the respondents cited both “user-friendly” and “fast response time,” what is the maximum possible number of respondents who cited “bargain prices,” but neither “user-friendly” nor “fast response time?”

A.    312

B.     336

C.     360

D.    384

E.     420

2. 答案选D

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.

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.

第二题有人有思路么？

条件1：X是个两位数，是说个位+十位数=5，因为X是正整数，那么只有以下几种可能：14，41，23，32.这几个数无论是谁除以3都余数是2.条件1成立

条件2：X=9K+5,那么X/3=3K+5/3=3K+1+2/3,还是余数2。条件2也成立

答案D

正解，不过补充下，条件一还有个可能是50.，不过不影响答案