Average pass percentage of girls = Total number of girls for pass the class/7
Average pass percentage of girls = 80 + 80 + 40 + 90 + 80 + 50 + 70/7 = 490/7 = 70%
Therefore. in class VI pass percentage of boys is more than the average pass percentage of girls.
Average of the total taxation during the years = total taxation for all the years / 6.
Average of the total taxation during the years = 600 + 725 + 1260 + 1730 + 2400 + 625 = 7390/6 = 1231.7 crores
Increase in taxation in between the financial years 2005-06 and 2006-07
= Rs. (2400 - 1730) = RS. 670 crores
Percentage of total decrease in taxation between the years 2006-07 and 2007-08
= (2400 - 675/ 2400 x 100 = 1725 x 100/ 2400 = 71.8%
Percentage of total increase = (1730 - 1260)/ 1260 x 100 = 470 x 100/ 1260 = 37.3%
Between the financial years 2005-06 and 2006-07, maximum incresase of Rs. 670 cores had been registered in taxation.
In class IV pass percentage of girls is the highest. Thereore in this class only number of failed girls is the minimum.
Difference between pass percentage of girls and boys in class I = 80 - 45 = 35%
Difference between pass percentage of girls and boys in class II = 80 - 70 = 10%
Difference between pass percentage of girls and boys in class III = 50 - 40 = 10%
Difference between pass percentage of girls and boys in class IV = 90 - 70 = 20%
Difference between pass percentage of girls and boys in class V = 80 - 55 = 25%
Difference between pass percentage of girls and boys in class VI = 80 - 50 = 30%
Difference between pass percentage of girls and boys in class VII = 70 - 50 = 20%
Hence, it is clear that result of class I shows maximum difference between pass percentage of the girls and the boys.
As per graph
Average pass percentage of the boys in classes II and III = 70 + 50/2 = 120/2 = 60%
As per given graph we can find that
Average pass percentage of the boys in classes VI and Vii = 50 + 70/2 = 60%
Therefore. average pass percentage of boys in classes II and III is equal to the average pass percentage of girls in classes VI and VII.
Average pass percentage of the school = Total number of pass Boys and girls / 14
Average pass percentage of the school = (80 + 45 + 80 + 70 + 40 + 50 + 90 + 70 + 80 + 55 + 50 + 80 + 70 + 50/14 = 910)/14 = 65%
Therefore, it is clear that pass percentage of the girls in III and VI classes is less than the average pass percentage of the school.
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