Bar graph
Direction: The bar graph given below shows annual result of different classes of a school. Study the graph carefully and attempt the question that follow:

- In which class pass percentage of boys is more than the average pass percentage of girls of the school?
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Average pass percentage of girls = Total number of pass girls in school/7
Correct Option: A
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.
- In which class number of failed girls is minimum?
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In class IV pass percentage of girls is the highest.
Correct Option: C
In class IV pass percentage of girls is the highest. Thereore in this class only number of failed girls is the minimum.
- Result of which class shows maximum difference between pass percentage of the girls and the boy?
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Calculate the difference between pass percentage of girls and boys in classes.
Correct Option: A
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.
- Average pass percentage of boy in classes II and III is equal to average pass percentage of girls in which of the following classes?
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As per graph
Average pass percentage of the boys in classes II and III = 70 + 50/2 = 120/2 = 60%
Try option one by one and solve the question.Correct Option: C
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.
- In which of the following classes pass percentage of girls is less than the average pass percentage of the school?
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Average pass percentage of the school = Total number of pass Boys and girls / 14
Correct Option: A
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.