How many people in Town X read neither the Word newspaper nor the Globe newspaper ?
(1 )Of the 2, 500 people in Town X, 1,000 read no newspaper.
(2)Of the people in Town X, 700 read the globe only and 600 read the World only.
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.
条件(1) 其实是指的X镇有2500人,因为带有冠词the;之所以insufficient是因为我们不能假设X镇只有World和Globe两种报纸。
{不读报纸}={不读World且不读Globe且不读Others}⊆{不读world且不读Globe}
登录 或 注册 后可以参加讨论