题目信息
A box contains red and blue balls only. If there are 8 balls in total, how many red balls are in the box?
(1) If two balls are randomly selected without replacement, the probability that both balls are red is $$\frac{5}{14}$$
(2) If two balls are randomly selected without replacement, the probability is $$\frac{15}{56}$$ that the first ball is red and the second ball is blue.
(1) If two balls are randomly selected without replacement, the probability that both balls are red is $$\frac{5}{14}$$
(2) If two balls are randomly selected without replacement, the probability is $$\frac{15}{56}$$ that the first ball is red and the second ball is blue.
A:Statement 1 ALONE is sufficient to answer the question, but statement 2 alone is NOT sufficient.
B:Statement 2 ALONE is sufficient to answer the question, but statement 1 alone is NOT sufficient.
C:BOTH statements 1 and 2 TOGETHER are sufficient to answer the question, but NEITHER statement ALONE is sufficient.
D:Each statement ALONE is sufficient to answer the question.
E:Statement 1 and 2 TOGETHER are NOT sufficient to answer the question.
Previous
参考答案及共享解析

共享解析来源为网络权威资源、GMAT高分考生等; 如有疑问,欢迎在评论区提问与讨论
本题耗时:
已选答案:
正确答案:
A:Statement 1 ALONE is sufficient to answer the question, but statement 2 alone is NOT sufficient.
权威答案解析正在整理中,即将上线。


题目来源
Magoosh