Practice Average Questions and Answers

• 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...
• Average age of 16 students is 18 years. If 4 students leave the class, then the average age decreases by 1.5 years. Find the average age of the students wh...
• In 40 matches, Mia had a bowling average of 18.6. She played 3 more matches, took 3 wickets after conceding 162 runs, and her average increased by 1.8. Cal...
• In 25 matches, Nick had a bowling average of 10.4. After playing 2 more matches, where he took 2 wickets giving 52 runs, his average went up by 0.6. Determ...
• The average marks scored by 30 boys and 40 girls are 75 and 85 respectively. Find the average marks scored by all the students together. (Answer should be ...
• The average marks scored by 45 boys and 55 girls are 78 and 84 respectively. Find the average marks scored by all the students together. (Answer should be ...
• The average marks scored by 32 boys and 38 girls are 70 and 92 respectively. Find the average marks scored by all the students together. (Answer should be ...
• The average marks scored by 20 boys and 45 girls are 88 and 94 respectively. Find the average marks scored by all the students together. (Answer should be ...
• The average of four numbers is 150. Two of the numbers are equal (not least), and 50 more than the least number. If the 4th number is twice the least numbe...
• The average of ten positive numbers is calculated as 56. On observing, it was found that two numbers 64 and 32 are wrongly interpreted as 76 and 52, respec...
• The average height of each person in group 'C' having 25 people is 10 cm less than the average height of each person in group 'D' having 20 people. If the ...
• The average height of each person in group 'G' having 28 people is 12 cm less than the average height of each person in group 'H' having 24 people. If the ...
• The average of 8 numbers is 22. When two new numbers 'p' and 'q' are added, the average increases by 3. If p - q = 10, find the value of q.