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26 May, 15:16

Julie's MP3 player contains 860 songs. If 20% of the songs are rap songs and 15% of the songs are R& B songs, how many of the songs are other types of songs?

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  1. 26 May, 18:02
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    Total number of songs in Julie's MP3 player = 860

    Percentage of rap songs in Julie's MP3 player = 20%

    Then

    Number of rap songs in Julie's MP3 player = (20/100) * 860

    = 860/5

    = 172

    Percentage of R&B songs in Julie's MP3 player = 15%

    Then

    Number of R&B songs in Julie's MP3 player = (15/100) * 860

    = 1290/10

    = 129

    So

    The number of other types of songs in Julie's MP3 player = 860 - (172 + 129)

    = 860 - 301

    = 559

    So the number of other types of songs in Julie's MP3 player was 559.
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