扫描二维码，直接登录
题库 / Prep2007E1-DS-211
If k is a positive integer, then 20k is divisible by how many different positive integers?
(1) k is prime.
(2) k = 7
Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
EACH statement ALONE is sufficient.
Statements (1) and (2) TOGETHER are NOT sufficient.
还没有题目讲解（毕出老师会陆续发布对官方考题的解读，请保持关注）。
问different positive integer，要考虑p是否等于2或5.