[計量] 請教2題計量問題
各位好:
煩請高手撥空解答，問題如下:
(1) Of the 7 members of the city concil, 4 are Democrats and 3 are
Republicans. T is the total number of different 3-person committees
that can be appointed from the council membership such that each
committee consists of 2 Democrates and 1 Republican.
Question: T 15
Answer: A
可否連題意一併解釋? 這題我連題目都看不懂.....
(2) A positive integer with exactly two different divisors greater than 1
must be
(A) a prime
(B) an even integer
(C) a multiple of 3
(D) the square of a prime
(E) the square of an odd integer
Answer: D
謝謝~~
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 220.129.121.170
推
08/21 22:16, , 1F
08/21 22:16, 1F
→
08/21 22:18, , 2F
08/21 22:18, 2F
討論串 (同標題文章)