Gaffigan has a collection of 50 songs that are each 3 minutes in length and 50 songs that are each 5 minutes in length. What is the maximum number of songs from her collection that she can play in 3 hours?
She has a total of 100 songs in her collection.
3 hours x 60 minutes =180 minutes
50 3-minute long songs can be played in:
50 x 3 = 150 minutes
180 minutes - 150 minutes = 30 minutes left.
30 / 5-minute songs = 6 songs can be played.
Therefore, the maximum number of songs she can play in 3 hours is:
50 + 6 = 56 songs.
