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27 June, 09:31

You have 160 songs on your MP3 player. Ihe probability of randomly choosing a rock song is 30%. How many of the songs on your MP3 player are not rock songs?

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Answers (2)
  1. 27 June, 10:19
    0
    Total songs = 160

    probability of randomly choosing a rock song is 30%. This means 30% of your songs are rock songs.

    Number of rock songs = 160 * 30/100 = 48

    So, Number of songs which are not rock songs = 160 - 48 = 112

    Hence, 112 songs on your MP3 player are not rock songs.
  2. 27 June, 12:19
    0
    160x. 30=48

    So you have 48 rock songs
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