Monday, March 29, 2010

Graph P6 2009 SA2 P2 MGS Q10

10. The pie chart below shows the results of a survey done on the preferences of 700 movie viewers. Half of the viewers prefer Japanese and Korean movies.

a) How many viewers like to watch Japanese movies? [1m]
b) The ratio of the number of viewers who like American movies to the number of viewers who like Korean movies is 7 : 4. How many viewers like American movies? [2m]


50 – 20 = 30

100% -- > 700

30% -- > 30/100 x 700 = 210


a) 210 viewers like to watch Japanese movies.


7/4 x 20 = 35

35% -- > 35/100 x 700 = 245


b) 245 viewers like American movies.

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