2. 外语
  3. 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?

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?

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问题 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?
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答案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一6)头猪，x+ (38+x)+ (x一6)=224，可得出这位农民有64头牛，因此他有 (x一6)=58头猪。)
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