The table below shows the number of people who responded to a survey about their favourite style of music. Use this information to answer the following questions to the nearest whole percentage.
What percentage of respondents aged 21-30 indicated a favourite style other than Rock music?
Total respondents in 21-30 =33
Respondents liking Rock = 12
So respondents liking other = 33-12 =21
Therefore in percentage : (21/33)*100 = 64%
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