The average marks of 30 boys of section A of class X is 60 whereas the average marks of 30 boys of section B of class X is 50. The average marks for both the sections combined together is
Answers
Give
The average marks of 30 boys of section A of class X is 60.
The average marks of 30 boys of section B of class X is 50.
To Find:
The average marks for both the sections combined together.
We know that:
Average marks = Total marks / Total students
In section A of class X:
Total students = 30
Average marks = 60
Finding the total marks:
→ 60 = Total marks / 30
→ Total marks = 1800
In section B of class X:
Total students = 30
Average marks = 50
Finding the total marks:
→ 50 = Total marks / 30
→ Total marks = 1500
When both the sections combined together:
Total students = 30 + 30 = 60
Total marks = 1800 + 1500 = 3300
Finding the average marks:
→ Average marks = 3300/60
→ Average marks = 55
Hence,
The average marks for both the sections combined together is 55.
Give
The average marks of 30 boys of section A of class X is 60.
The average marks of 30 boys of section B of class X is 50.
To Find:
The average marks for both the sections combined together.
We know that:
Average marks = Total marks / Total students
In section A of class X:
Total students = 30
Average marks = 60
Finding the total marks:
→ 60 = Total marks / 30
→ Total marks = 1800
In section B of class X:
Total students = 30
Average marks = 50
Finding the total marks:
→ 50 = Total marks / 30
→ Total marks = 1500
When both the sections combined together:
Total students = 30 + 30 = 60
Total marks = 1800 + 1500 = 3300
Finding the average marks:
→ Average marks = 3300/60
→ Average marks = 55
Hence,
The average marks for both the sections combined together is 55.
Give
The average marks of 30 boys of section A of class X is 60.
The average marks of 30 boys of section B of class X is 50.
To Find:
The average marks for both the sections combined together.
We know that:
Average marks = Total marks / Total students
In section A of class X:
Total students = 30
Average marks = 60
Finding the total marks:
→ 60 = Total marks / 30
→ Total marks = 1800
In section B of class X:
Total students = 30
Average marks = 50
Finding the total marks:
→ 50 = Total marks / 30
→ Total marks = 1500
When both the sections combined together:
Total students = 30 + 30 = 60
Total marks = 1800 + 1500 = 3300
Finding the average marks:
→ Average marks = 3300/60
→ Average marks = 55
Hence,
The average marks for both the sections combined together is 55.