Mathematics
Study the given graph and then answer the following questions :
(i) Which classes have the larger number of students ?
(ii) Which class has the equal number of girls and boys ?
(iii) What is the total number of students in class VIII ?
(iv) What is the total number of students (from the class VI to class X) ?
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Answer
(i) Numbers of students in VI = Number of boys + Number of girls
= 30 + 50 = 80
Numbers of students in VII = Number of boys + Number of girls
= 60 + 40 = 100
Numbers of students in VIII = Number of boys + Number of girls
= 30 + 70 = 100
Numbers of students in IX = Number of boys + Number of girls
= 50 + 50 = 100
Numbers of students in X = Number of boys + Number of girls
= 60 + 30 = 90
Hence, classes VII, VIII and IX have the larger number of students.
(ii) In class IX, the number of boys = number of girls = 50.
Hence, class IX has an equal number of girls and boys.
(iii) Numbers of students in VIII = Number of boys + Number of girls
= 30 + 70
= 100
Hence, the total number of students in class VIII is 100.
(iv) Total number of students = Number of students in class VI + Number of students in class VII + Number of students in class VIII + Number of students in class IX + Number of students in class X
= 80 + 100 + 100 + 100 + 90
= 470
Hence, the total number of students from class VI to X is 470.
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