Question

the average marks obtained by a class 40 students is 40 and the average marks obtained by another class of 60 students is 60. find the combined average?​

Answer 1

Answer:

Avg of all students is 52.5

Use formula (total marks of students from class A)*(total marks of students from class B) / (total no of students)

to find total marks of students, you need to multiply the corresponding avg value with the its strength.

Explanation: