Practice: Averages

Question 1 of 25

Medium Averages

The average of five numbers is 54. The average of the first three numbers is 52, and the average of the last three numbers is 56. What is the third number?

Question 2 of 25

Medium Averages

Mean of 5 numbers is 27. If one number is excluded, mean = 25. Excluded?

Question 3 of 25

Medium Averages

In a class of 50 students, the average score in a math test is 75. If the scores of 5 students who scored an average of 60 are removed, what is the new average score of the remaining students?

Question 4 of 25

Medium Averages

The average of 6 numbers is 12. If one number is removed, the average of the remaining numbers is 11. What is the number that was removed?

Question 5 of 25

Medium Averages

The average marks obtained by 20 students in a class is 75. If the marks of two students are removed, the average becomes 78. If their marks differ by 4, find the marks of the student who scored higher.

Question 6 of 25

Medium Averages

The average weight of a group of 15 people increases by 2 kg when a new person weighing 70 kg joins the group. What was the average weight of the original group?

Question 7 of 25

Medium Averages

Average of first 10 odd natural numbers?

Question 8 of 25

Medium Averages

Average of 5 consecutive even numbers is 30. The largest number is?

Question 9 of 25

Medium Averages

In a class of 40, the average mark is 65. If 5 students are removed and average becomes 70, sum of removed marks?

Question 10 of 25

Medium Averages

In a cricket match, the average score of 7 players is 48 runs. If the highest score is excluded, the average becomes 44. What was the highest score?

Question 11 of 25

Medium Averages

The average weight of a group of 10 students is 50 kg. If the heaviest student's weight is removed, the average weight drops to 48.5 kg. What is the weight of the heaviest student?

Question 12 of 25

Medium Averages

The average of 8 numbers is 20. If each number is increased by 2, what will be the new average?

Question 13 of 25

Medium Averages

The average age of a group of 10 people is 40 years. If a new person joins the group, the average age becomes 42 years. What is the age of the new person?

Question 14 of 25

Medium Averages

Mean of 7 numbers is 18. After removing one number, mean becomes 17. Removed number?

Question 15 of 25

Medium Averages

The average weight of 25 apples is 100 grams. If one apple weighing 120 grams is added, what is the new average weight?

Question 16 of 25

Medium Averages

The average height of 30 students in a class is 150 cm. If the heights of the teacher and a new student are included, the average height increases by 1 cm. If the teacher's height is 180 cm, what is the height of the new student?

Question 17 of 25

Medium Averages

The average monthly income of A and B is Rs. 12,000, and that of B and C is Rs. 15,000. If the average monthly income of A and C is Rs. 16,500, find B's monthly income.

Question 18 of 25

Medium Averages

The average weight of 15 boys in a class is 68 kg. If the weight of the teacher is added, the average increases by 1 kg. What is the weight of the teacher?

Question 19 of 25

Medium Averages

Average age of 30 students is 14. With teacher, average becomes 15. Teacher's age?

Question 20 of 25

Medium Averages

The average mark obtained by 20 students is 45. If the marks of two students were wrongly entered as 35 and 50 instead of 40 and 55, find the correct average.

Question 21 of 25

Medium Averages

The average salary of 30 employees in a company is $2000. If the manager, who earns $5000, is included, what will be the new average salary?

Question 22 of 25

Medium Averages

Average of 7, 12, 15, 20, 26?

Question 23 of 25

Medium Averages

The average age of a class of 30 students is 15 years. If the age of the teacher is included, the average age increases by 1 year. What is the age of the teacher?

Question 24 of 25

Medium Averages

The average weight of 6 people is 70 kg. If one person leaves the group, the average weight of the remaining people is 68 kg. What was the weight of the person who left?

Question 25 of 25

Medium Averages

A student scored an average of 60 marks in four subjects. If the total marks obtained in three subjects are 200, what is the mark obtained in the fourth subject?

Finish

The average of five numbers is 54. The average of the first three numbers is 52, and the average of the last three numbers is 56. What is the third number?

Mean of 5 numbers is 27. If one number is excluded, mean = 25. Excluded?

In a class of 50 students, the average score in a math test is 75. If the scores of 5 students who scored an average of 60 are removed, what is the new average score of the remaining students?

The average of 6 numbers is 12. If one number is removed, the average of the remaining numbers is 11. What is the number that was removed?

The average marks obtained by 20 students in a class is 75. If the marks of two students are removed, the average becomes 78. If their marks differ by 4, find the marks of the student who scored higher.

The average weight of a group of 15 people increases by 2 kg when a new person weighing 70 kg joins the group. What was the average weight of the original group?

Average of first 10 odd natural numbers?

Average of 5 consecutive even numbers is 30. The largest number is?

In a class of 40, the average mark is 65. If 5 students are removed and average becomes 70, sum of removed marks?

In a cricket match, the average score of 7 players is 48 runs. If the highest score is excluded, the average becomes 44. What was the highest score?

The average weight of a group of 10 students is 50 kg. If the heaviest student's weight is removed, the average weight drops to 48.5 kg. What is the weight of the heaviest student?

The average of 8 numbers is 20. If each number is increased by 2, what will be the new average?

The average age of a group of 10 people is 40 years. If a new person joins the group, the average age becomes 42 years. What is the age of the new person?

Mean of 7 numbers is 18. After removing one number, mean becomes 17. Removed number?

The average weight of 25 apples is 100 grams. If one apple weighing 120 grams is added, what is the new average weight?

The average height of 30 students in a class is 150 cm. If the heights of the teacher and a new student are included, the average height increases by 1 cm. If the teacher's height is 180 cm, what is the height of the new student?

The average monthly income of A and B is Rs. 12,000, and that of B and C is Rs. 15,000. If the average monthly income of A and C is Rs. 16,500, find B's monthly income.

The average weight of 15 boys in a class is 68 kg. If the weight of the teacher is added, the average increases by 1 kg. What is the weight of the teacher?

Average age of 30 students is 14. With teacher, average becomes 15. Teacher's age?

The average mark obtained by 20 students is 45. If the marks of two students were wrongly entered as 35 and 50 instead of 40 and 55, find the correct average.

The average salary of 30 employees in a company is $2000. If the manager, who earns $5000, is included, what will be the new average salary?

Average of 7, 12, 15, 20, 26?

The average age of a class of 30 students is 15 years. If the age of the teacher is included, the average age increases by 1 year. What is the age of the teacher?

The average weight of 6 people is 70 kg. If one person leaves the group, the average weight of the remaining people is 68 kg. What was the weight of the person who left?

A student scored an average of 60 marks in four subjects. If the total marks obtained in three subjects are 200, what is the mark obtained in the fourth subject?

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