Practice Average Questions and Answers

• Anish and Ajay are business partners. Three years ago, their average age was 18 years. Vikas has recently joined them and now the average age of three part...
• The average salary of 28 employees is recorded as ₹ 16,584. If the salary of an employee with value ₹14,526 was entered Wrongly as ₹ 41,238, then the...
•  In a school with 400 students, the average age of the boys is 16 years and that of the girls is 12 years. If the average age of school is 14 years 9 mont...
• In a Company the average income of all the employees is Rs. 22000 per month. Recently the company announced an increment of Rs. 2000 per month for all the ...
• Four persons ‘A’, ‘B’, ‘C’, and ‘D’ have different amounts with them. ‘D’ has twice the amount than that of ‘A’. The amount ‘B’...
• The average weight of a class of 25 student is 60 KG. If X is student joined the class,  than the average weight of whole class increases by (2X – 7)Kg....
• In a gathering of 30 guests, the average age of each guest in the class is 21 years. Later, 4 more guests join the party, causing the average age of the en...
• The average age of a group of 10 friends is 27 years. If one friend leaves the group, the average becomes 25years. Find the age of the friend who left the ...
• 32 × 15 + 60% of 200 = ? + 120
• [123 ÷ 8 ÷ 9] × 144 = ? + 12 × 5
• The meaning of 12 observations is 15. One more observation is included, and the new mean becomes 17. The 13th observation is.
• The average of five consecutive natural numbers is 14. What will be the average of the seven numbers if the next two natural numbers are also included?
• The present average age of X, Y, and Z is 45 years. 8 years ago, the average age of X and Y was 38 years. What is the present age of Z?
• The average monthly fee of all 45 students in a class is Rs. 9,500. After an increment, the new monthly average fee of each student becomes Rs. (9500 + X)....
• In a group of 50 students, the average monthly tuition is Rs. 7,200. Following a fee adjustment, the new average monthly tuition per student is Rs. (7200 +...
• The average monthly fee for 30 students in a workshop is Rs. 10,000. After an increase, the new monthly average fee for each student is Rs. (10000 + X). If...
• The average salary of a group of 60 employees is Rs. 400. If 6 employees receiving an average salary of Rs. 450 leave the group and 4 new employees receivi...
• Anita bought a refrigerator at a discount of 20% on MRP. She earned one-third the amount of her CP by renting it for 300 days. After that, she resells it a...
• The average age of a group of eight children is 9 years. Two children, whose ages were 7 years more and 5 years more than the average age, left. Two new ch...
• The average age of a group of four children is 11 years. From the group, one child, whose age was 6 years more than the average age, left. Four new childre...
• The average age of a group of nine children is 7 years. From the group, three children, whose ages were 3 years more, 2 years more, and 4 years more than t...
• The average weight of 8 people is 75 kg. When three new people with their weights in the ratio 3:4:5 joined the group, the average weight of all the people...
• The average weight of 6 people is 80 kg. When two new people with their weights in the ratio 2:3 joined the group, the average weight of all the people rem...
• A bag contains 6 red, 10 yellow, and 14 black balls. If 2 balls are picked at random without replacement, find the probability that the first ball is red a...
• Average of four consecutive prime numbers R1, R2, R3, and R4 is (14 + x). If the average of R1 and R2 is (11 + x) and the average of R3 and R4 is (11 + 2x)...
• Average of four consecutive prime numbers T1, T2, T3, and T4 is (17 + x). If the average of T1 and T2 is (13 + x) and the average of T3 and T4 is (13 + 3x)...
• A gift box has 10 bangles. The average weight of the first 4 bangles is 56gms and the average weight of the remaining 6 bangles is 57 gms. Tell the average...
• The average weight of 70 notebooks kept in a box is 7 kg. When a new notebook is placed in the box, then the average is 7.1kg. Specify the weight of the ne...
• An English-based company has 625 men and 625 female employees in a collaborative project. The average attendance of all employees is 74 calls per day. On a...
• The average of the first and second numbers is 45, while the average of the second and third numbers is 55. If the sum of the first and third numbers is 94...
• The average of the second and third numbers is 50, while the average of the first and fourth numbers is 54. If the sum of the second and fourth numbers is ...
• The average of the first and second numbers is 20, while the average of the second and third numbers is 25. If the sum of the first and third numbers is 44...
• Nora claims her age is between 18 and 22 years. Her grandmother says Nora's age is between 20 and 24 years. Her aunt thinks her age is between 19 and 21 ye...
• The average weight of 32 employees in an office is 38 kg, while the average weight of 6 managers overseeing these employees is 62 kg. If 12 employees and 2...
• A cricketer scored 240 runs in his first six matches of a tournament. Find the average runs the cricketer must score in the next four matches so that his a...
• A football player scored 400 points in the first eight games of the season. Find the average points he must score in the next two games so that his average...
• There are 30 employees in a company, out of which 50% are officers and the rest are workers. The average salary of each employee in the company is Rs. 22,0...
• 2040, 600, 240, 150, ?, 121.875
• Average age of 25 students is 15 years. If 5 students leave the class, the average age decreases by 1 year. Find the average age of the students who left t...
• Average age of 30 students is 14 years. If 6 students leave the class, then the average age decreases by 0.5 years. Find the average age of the students wh...