求助一道DS题

xphdp123 · 发表于 2010-4-18 12:18:38

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

答案选c 我选e
主要是不理解条件一到底是什么意思，是说牛是猪的2倍呢，还是说猪是牛的2倍？

flyingbunny · 发表于 2010-4-18 12:49:23

”twice ... cows“ "...has pigs"

猪是牛的2倍

求助一道DS题

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