human
There are 40 ducks in a pond. 50 percent of the ducks are Muscovy and 30 percent of the Muscovies are female. How many female Muscovy ducks there?
assistant
How many Muscovy ducks are there? ** Muscovies: 40(.50)=<<40*.50=20>>20 Muscovy ducks
How many Female Muscovies are there? ** Female Muscovies:20(.30)=6 ducks
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