Averages Questions

The average weight of Rohan and his three friends is 62kg. If Rohan's weight is 8kg more than the average weight of his three friends, what is Rohan's weight (in kg)?

The average monthly income of A and B is ₹5,050, the average monthly income of B and C is ₹6,250, and the average monthly income of A and C is ₹5,200. What is the sum of the monthly incomes (in ₹) of A, B and C?

From the following table, find what is the average weight (in kg) of the given persons?
Name Aman Sudha Vishal Sumedha Sahil Usha
Weight (kg) 52.7 54 55.25 57.4 58.75 58

Refer to the below data table and answer the following question.
Subjects Marks scored
English 70
Hindi 40
Math 75
Science 35
Arts 70
Five points are to be deducted from this student's average of marks scored because of poor attendance. What will be this student's net average marks scored?

The following table shows the number of children in each house of a society.
Number of Children Number of Houses
0 3
1 9
2 18
3 3
What is the average number of children per house?

The average weight of Sourabh, Juana and Rina is 90kg. If the average weight of Sourabh and Juana be 69kg and that of Juana and Rina be 94kg, then the weight of Juana is:

Of the 3 numbers whose average is $64$, the first number is $\frac{1}{3}$ times the sum of the other 2. The first number is:

The following table shows the number of children in each house of a society.Number of ChildrenNumber of Houses0411321035What is the average number of children per house?

The mean of marks secured by 55 students in division A of class X is 58, 45 students of division B is 54 and that of 75 students of division C is 52. Find the mean of marks of the students of three divisions of Class X.

The average weight of X, Y and Z is 35 kg. If the average weight of X and Y is 33 kg and that of Y and Z is 29 kg, then what is the weight (in kg) of Y?

Refer to the below data table and answer the following question.
Item Quantity of stock Average Cost (Rs)
Mobile Phones 44 11000
Cameras 9 56000
TVs 37 41000
Refrigerators 33 49000
ACs 45 22000
What is the value of the total stock (in lakh rupees)?

The average revenues of 9 consecutive years of a company is Rs. 68 lakhs. If the average of the first 5 years is Rs. 63 lakhs and that of the last 5 years is Rs. 75 lakhs, find the revenue for the 5th year.

Refer to the below data table and answer the following question.
Number of employees Annual salary (in lakhs) Bonus as percent of annual salary
Manager

3

5 40%
Executive

5

1.2 30%
Trainee

5

0.2 20%
What is the average bonus (in rupees)?

The average of $10$ numbers is $41$. The average of first $3$ numbers is $39.4$ and the average of last $4$ numbers is $43.5$. $4^{\text{th}}$ number is $2$ more than $5^{\text{th}}$ number and $0.2$ more than $6^{\text{th}}$ number. What is the average of the $4^{\text{th}}$ and $6^{\text{th}}$ numbers?

The average age of $24$ students in a class is $15.5$ years. The age of their teacher is $28$ years more than the average of all twenty-five. What is the age of the teacher in years?

Study the following table, which shows the number of units of a product manufactured and sold by a company in five years, and answer the question.YearsNumber of units Manufactured (in thousands)Number of units Sold (in thousands)20133503202014375315201530028020164504232017420360In which year the number of units of the product sold is $19000$ less than the average number of units manufactured per year?

Refer to the below data table and answer the following question:
Subjects Marks scored
English 70
Hindi 75
Math 30
Science 75
Arts 60
Five points are to be deducted from this student's average of marks scored because of poor attendance. What will be this student's net average marks scored?

In a class of 56 students there are 21 girls. The average weight of these girls is 56kg and the average weight of the full class is 62.875kgs. What is the average weight of the boys of the class?

Refer to the below data table and answer the following question.
Subjects Marks scored
English 70
Hindi 55
Math 70
Science 55
Arts 55
Five points are to be deducted from this student's average of marks scored because of poor attendance. What will be this student's net average marks scored?

The average marks of 72 students is shown as 69. It includes a wrong entry of 45 marks instead of 54 marks. The correct average is:

The following table shows the number of children in each house of a society.
Number of Children Number of Houses
0 4
1 10
2 19
3 3
What is the average number of children per house?

The average weight of Shubha, Govinda and Reshma is 65kg. If the average weight of Shubha and Govinda be 63kg and that of Govinda and Reshma be 70kg, then the weight of Govinda is:

The average score in a test for 50 students is 44. Out of the total students, 40% of the students are girls and the rest are boys. The average score of boys is 20% less than that of girls. What is the average score of girls?

The average height of 50 bats is 126cm. Some bats of average height 120cm are removed. If the new average height is 130cm, then how many bats are remaining?

Refer the below data table and answer the following Question.
Designation Number of employees Annual salary (in lakhs) Bonus as percent of annual salary
Manager 16 6 20%
Executive 51 6 30%
Trainee 12 2 20%
What is the average bonus (in rupees)?

In a class of 60 students there are 30 girls. The average weight of these girls is 58kg and average weight of the full class is 63kg. What is the average weight of the boys of the class?

In a class of 65 students there are 39 girls. The average weight of these girls is 60Kg and average weight of the full class is 64kgs. What is the average weight of the boys of the class?

The average of $n$ observations is $40$. If two observations $50$ and $60$ are added, then the average of all the observations will be $41$. What is the value of $n$?

In a class of $88$ students, the number of girls is $20\%$ more than the number of boys. The average height of the boys is $164\text{ cm}$, and the average height of girls is $4\text{ cm}$ less than the average height of all the boys and girls in the class. What is the average height (in $\text{cm}$) of all the students in the class?