ds1-61 5157-!-item-!-187;#058&004472 快考了，帮帮忙呀

cyorinww66

61.    5157-!-item-!-187;#058&004472
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.

这是PREP里的一道题，我做模考的时候做到了， “The farm has more than twice as many cows as it has pigs。”这句话我的理解是农场里牛比猪的两倍还要多，也就是 C >2P. 不知道对不对？？？

语法里面的比较题容易错，到了数学发现理解力也有问题了。。呃~~

多谢多谢~

sherrycc

我选C
不过[?]
代表什么意思啊是不是漏了什么数字？

不管怎么样 题干得出C+P=60

(1)  The farm has more than twice as many cows as it has pigs.
        p>2c    INSUFFICIENT

(2)  The farm has more than 12 pigs.
        p>12   INSUFFICIENT


(1)+(2)  C+P > C+2C <60  所以C<20

根据条件的 还是选C

cyorinww66

61.    5157-!-item-!-187;#058&004472
Of the 60 animals on a certain farm,  2/3 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.

分数之前没有显示出来。。
第一个条件是 C>2P? 我就是不确定这个。。
这题的答案是C没错了

sherrycc

啊啊啊啊啊啊啊啊LZ 我错鸟

是P>2C。。。。更正一下

The farm has more than twice as many cows as it has pigs.
means  pigs more than twice cows....

cyorinww66

啊啊啊啊啊啊啊啊LZ 我错鸟

是P>2C。。。。更正一下

The farm has more than twice as many cows as it has pigs.
means  pigs more than twice cows....

-- by 会员 sherrycc (2011/8/1 19:04:00)

没关系，还是谢谢你，不过我还是转不过来。 如果说 The farm has twice as many cows as it has pigs.我知道应该是 2C=P，但是加了一个MORE THAN，不应该是2C>么？不懂不懂，你能再讲讲么？

cyorinww66

为什么是看得人多，答得人少咧？顶，顶顶~

jamesc

我觉得是C>2P,我8号考，今天也遇到了这道题。。。

cyorinww66

OG里面的diagnostic Test里的第6题明确解释了 “three times as many households use Y as use X" 的意思是 3X=Y，那么如果加了一个more than在three times前面呢？more than 是修饰X还是修饰Y呢？和这里的sheep和cow的问题是一样的，麻烦有牛人来解答一下，真的很困惑！感谢感谢！

megadreamer

我开始也理解为C>2p 但是想把分析写出来的时候就词穷了，自己也糊涂了！

megadreamer

刚才翻阅了prep的语法笔记，第181题，标注的重点题下面有详细的关于倍数问题的一些表达小结，你可以看一下。

基本上的总结可以为：
（如果担心误导就遮住as many as吧，不影响理解的！）
twice as many as A is B:2A=B
more than twice as many as A is B: 2A<B