[計量] OG/OV一題計量
小弟在寫字神的計量回家作業時遇到一題想很久
還是不甚了解題目在說什麼的,想與大家討論
這題似乎是OG還是OV的
希望大家有時間可以幫小弟看一下
提供自己的想法!
In a certain sock drawer, there are 4 pairs of black socks,
3 pair of gray socks and 2 pair of orange socks, If socks are
removed at a random without replacement, what is the minimum
number of socks that must be removed in order to ensure that two socks
of same color have been removed
(A) 4
(B) 7
(C) 9
(D) 10
(E) 11
正確答案是A
還望板上各位大神幫忙
謝謝大家
--
※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 61.231.107.203
※ 文章網址: https://www.ptt.cc/bbs/GRE/M.1429010801.A.A26.html
推
04/14 21:09, , 1F
04/14 21:09, 1F
推
04/15 09:10, , 2F
04/15 09:10, 2F
→
04/15 09:11, , 3F
04/15 09:11, 3F
→
04/15 09:11, , 4F
04/15 09:11, 4F
→
04/15 09:12, , 5F
04/15 09:12, 5F
→
04/15 09:13, , 6F
04/15 09:13, 6F
→
04/15 09:13, , 7F
04/15 09:13, 7F
→
04/15 09:14, , 8F
04/15 09:14, 8F
→
04/15 09:15, , 9F
04/15 09:15, 9F
推
04/15 16:36, , 10F
04/15 16:36, 10F
→
04/15 16:36, , 11F
04/15 16:36, 11F