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In a company, the average salary of 3 junior employees is ₹25,000 and that of 2 senior employees is ₹50,000. What is the combined average salary?

An investor tracks 6 stocks. Five of them have an average return of 7%. If the overall average return is 10%, what was the return on the sixth stock?

The average age of 5 students in a class increases by 2 years when a 40-year-old teacher joins them. What was the original average age of the students?

Three groups of students have average marks 60,70 , and 80 respectively. The number of students in these groups are 30,50 , and 30 . What is the combined average of all students ?

A teacher calculated the average marks of 20 students in a test as 65 . Later, she found that the marks of one student were wrongly entered as 45 instead of 85 . After correcting the error, what is the correct average mark of the class?

The average of 17 numbers is 32 . If each number is doubled and then 8 is added to each, what will be the new average ?

A batsman typically scores 50 runs in 30 innings. To raise his average by two, how many runs does he need to score in the thirty-first inning?

The average marks of 10 students in a mathematics test are 73.5. Later, it was found that one student's score was misread as 45 instead of 54. After correcting this error, another student's marks were removed for being invalid, and the average of the remaining 9 students rose to 76.2 . Find the marks of the student whose score was removed.

The average of 8 numbers is 25 . If two numbers 35 and 45 are removed, what is the new average of the remaining numbers?

A factory hired 10 workers and found that their average productivity per day was 43.75 unit. Later, 3 more workers were hired. The average productivity of all 13 workers then became 46.5 units. However, one of the new 3 workers made 50.2 unit daily, and another made 46.4 unit daily. What is the daily productivity of the third new worker?

The average of 15 numbers is 30 . If 5 is added to 40% of the numbers and 3 is subtracted from the remaining 60% of the numbers, what will be the new average?

The average of 7 consecutive odd natural numbers is 39. Previous 7 consecutive odd natural numbers to these 7 odd natural numbers are also included. What will be the average of newly added numbers ?

The average of 5 consecutive odd natural numbers is 57. Previous 5 consecutive odd natural numbers to these 5 odd natural numbers are also included. What will be the average of newly added numbers?

There are 20 players in a team. The average age of these 20 players is ' $X$ '. 10 new players joined the team. There is no change in the average age of the team. What is the total age of these 10 players?

In a science club, the average score of 20 students in a monthly test is 68.5. After including the scores of 4 more students, the overall average becomes 70.2 . If the scores of two of the new students are 72.5 and 75.5 , respectively, and the remaining two students have equal scores, find the score of each of the remaining two students.

The average age of 59 students of a class is 22 years. If the age of the teacher is also included, the average age of the whole group becomes 23 years. The age (in years) of the teacher is:

There are 81 members in group $A$, 29 members in group B and 70 members in group C. All the members of these groups went to a restaurant. The average amount spent on each member of group A, B and C is ₹467, ₹117 and ₹378, respectively. The total average amount (in ₹) spent per member is: