Data Sufficiency

[Data Sufficiency] 试题详情

Of the 60 animals on a certain farm, are either pigs or cows.  How many of the animals are cows?
(1)   The farm has more than twice as many cows as it has pigs.
(2)   The farm has more than 12 pigs.

Options:

Correct:

C

Data Sufficiency

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[点此查看答疑][GWD]Data Sufficiency

题中"2/3 are either pigs or cows"怎么理解,我做题时理解成有40个pigs or 40个cows,是对either or这个短语理解错了吗
-1评分
72浏览

[点此查看答疑][GWD]Data Sufficiency

根据题目条件+(1)和(2),列出如下三式: 1.P+C=40; 2.P>2C; 3.P>12. 问题求C=? 思路:解出C<40/3,则C可以取比14小的正整数,满足此条件且满足P>12的C有很多啊,并不确定,所以选了E,如何能选出C?
0评分
89浏览

[点此查看答疑][GWD]Data Sufficiency

题中"2/3 are either pigs or cows"怎么理解,我做题时理解成有40个pigs or 40个cows,是对either or这个短语理解错了吗
-1评分
72浏览

[点此查看答疑][GWD]Data Sufficiency

根据题目条件+(1)和(2),列出如下三式: 1.P+C=40; 2.P>2C; 3.P>12. 问题求C=? 思路:解出C<40/3,则C可以取比14小的正整数,满足此条件且满足P>12的C有很多啊,并不确定,所以选了E,如何能选出C?

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