There are 20 girls and 30 boys in a class and their respective average marks are found to be 55 and ...........

Quantitative Aptitude Average

There are 20 girls and 30 boys in a class, and their respective average marks are found to be 55 and 58. The average marks of the entire class are

This questions was previously asked in

EPFO APFC (2015)

56.5

56.6

56.7

56.8

Let's calculate the average marks for the entire class:

- Girls: 20 girls with an average of 55

- Total marks for girls = 20 × 55 = 1,100

- Boys: 30 boys with an average of 58

- Total marks for boys = 30 × 58 = 1,740

- Total students: 20 girls + 30 boys = 50 students

- Combined total marks: 1,100 (girls) + 1,740 (boys) = 2,840

- Average marks for the class: Total marks ÷ Total students = 2,840 ÷ 50 = 56.8

The correct option is:

Option 4: 56.8

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