If 5 frogs catch 5 flies in 5 minutes, how many frogs are required to catch 50 flies in 50 minutes?

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问题 If 5 frogs catch 5 flies in 5 minutes, how many frogs are required to catch 50 flies in 50 minutes?

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答案5

解析 五只青蛙在五分钟内可捉到五只苍蝇,也就是说一只青蛙五分钟可以捉到一只苍蝇。因此,一只青蛙50分钟内可以捉10只苍蝇,要在50分钟内捉到50只苍蝇需要5只青蛙。  
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