来源：学生作业帮 编辑：作业帮 分类：数学作业 时间：2024/05/09 11:52:31
英语问题(其实和数学有关)
A farmer has some pigs and some ducks.There are 9 hands and 26 feet.
How many pigs are there?
首先,应该是heads而不是hands.
假设9个头全是猪头（即有9头猪）,那么应该有9×4=36只脚,而实际是26只,少了10只.而每只鸭子比一头猪少两只脚,所以少了10只脚就是少了5只鸭子,所以鸭子5只,猪4头.
answer:there are four pigs.
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