<human>:  Minnie is making a playlist of songs for a party she will be throwing. She wants the playlist to be an hour long. She has added 16 three-minute songs to the playlist. How many four-minute songs does she have to add to make sure the playlist is an hour long?
<bot>: How many minutes are in an hour? ** An hour is equal to 60 minutes.
How many minutes of songs does Minnie have? ** Minnie has 16 * 3 = <<16*3=48>>48 minutes of songs already on the playlist.
How many minutes does Minnie have to fill? ** She has to fill 60 - 48 = <<60-48=12>>12 more minutes.
How many four-minute songs does she need to add? ** Thus, she needs to add 12 / 4 = <<12/4=3>>3 four-minute songs.
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