A farmer has a total of 224 animals. He has 38 more sheep than cows and 6 more cows than pigs. How many pigs does he have
58[解析] 该题可通过简单的一元方程式得出：设这位农民有X头牛，那么他有(38+X)只羊和(X-6)头猪，X+(38+X)+(X-6)=224，可得出这位农民有64头牛，因此他有(X-6)=58头猪。
举一反三
- He has many more problems than he used to. A: 正确 B: 错误
- He has _________ friends than I. A: much more B: many more C: very more D: so more
- He has ________ friends than I. A: much more B: many more C: very more D: too more
- He is more ________for the job than the other candidates because he has more experience in this field
- He has much more problems than he used to.
内容
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What he has done is ______ what I have done. ( ) A: superior to B: more superior to C: superior than D: more superior than
- 1
He has （） more books than I. A: so B: many C: much D: too
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He has done more to __________ the image of America than anyone in history.
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How many movies does he see a week? A: One or two B: Three or four C: More than five
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I don't know ________________. A: how many children he has B: how many chidren does he have