Question

The average marks of 120 students of a class are 48.2. If the average marks of 50 girls of that class are 54, find the average marks of the boys.

Answer 1

To find the average marks of the boys in the class, we need to subtract the average marks of the girls from the overall average marks of the class.

Step-by-step explanation:

To find the average marks of the boys, we need to subtract the average marks of the girls from the overall average marks of the class. The total number of boys can be obtained by subtracting the number of girls from the total number of students. Let's calculate:

Average marks of boys = (Average marks of the class × Total number of students) - (Average marks of girls × Number of girls) / Number of boys

Average marks of boys = (48.2 × 120) - (54 × 50) / Number of boys

Since we don't have the total number of boys, we cannot find the exact average marks of the boys.

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