One barnyard owl makes 5 hoot sounds per minute.  If 5 less than 20 hoots per minute are heard coming out of the barn, how many Barnyard owls would this noise be coming from?
5 less than 20 hoots per minute is 20-5=<<20-5=15>>15 hoots per minute.
If one barnyard owl makes 5 hoot sounds per minute, then 15 hoots per minute are coming from 15/5=<<15/5=3>>3 barnyard owls.
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