An hour is equal to 60 minutes.

Minnie has 16 * 3 = <<16*3=48>>48 minutes of songs already on the playlist.

She has to fill 60 - 48 = <<60-48=12>>12 more minutes.

Thus, she needs to add 12 / 4 = <<12/4=3>>3 four-minute songs.

# Answer

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<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
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?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
3
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?
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