From above graph ,we can see that
Since , For A course the number of boys is minimum.
Hence Answer will be A course.
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 pie-chart , we can see that
Number of boys for difference courses are
A = 0; B = 100; C = 44; D = 180; E = 32; F = 44.
Hence ,C and F pair of courses are the number of boys the same .
Differnce between the production of foodgrains during 2004 and 2008 = 35 - 30 =5 thousand tonnes.
Percentage increase in food grain production = (30 - 15 )/15 x 100 = 100%
Total production in 2005 and 2007 = 20 + 15 = 35 thousand tonnes. This total production is equal to the production in the year 2004.
Rate of change in the amount of production in the year 2004 over the year 2003 = (Production in 2004 - Production in 2003 ) x 100/ Production in 2003
Rate of change in the amount of production in the year 2004 over the year 2003 = (35 - 30) x 100 / 30 = 5 x 100 / 30 = 16.67%
Similarly
Rate of change in the amount of production in the year 2006 over the year 2005 = (25 - 20) x 100 / 20 = 5 x 100/20 = 25%
Rate of change in the amount of production in the year 2007 over the year 2008 = (30 - 15) x 100 / 15 = 15 x 100/15= 100%
Rate of change in the amount of production in the year 2006 over the year 2007 = (25 - 15) x 100 / 15 = 10 x 100/15= 66.67%
Hence, it is clear that the rate of change in the amount of production during the consecutive years 2007 and 2008 is at the highest level.
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