Given:-Total number of students for course D = 35% of 1200 = 420
Number of girl students for course D = 30% of 800 = 240 ,
Number of boy students for course D = Total number of students for course D - Number of girl students for course D = 420 ? 240 = 180
Required ratio = Number of boy students for course D : Number of girl students for course D
Required ratio = 180 : 240 = 3 : 4
From above given chart ,
selling of white colours' cars = 26%
Since Cars of golden colour are 20% less popular than white coloured cars.
Required answer = 26 - 20 = 6%
Riya's overall percentage of Marks in all subject = (80 + 53 + 86 + 60 + 80 + 78)/6 = 437/6 ? 72.8%
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