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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?

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.

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:

There are 13 members in group $A$, 10 members in group B and 45 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 ₹367, ₹112 and ₹401, respectively. The total average amount (in ₹) spent per member is:

The average weight of 12 boxes is 18 kg. If the heaviest box weighs 24 kg and the lightest weighs 12 kg, what is the average weight of the remaining boxes?

The average of 10 numbers is 55. If each of the first 5 numbers is increased by 6 and each of the last 5 numbers is decreased by 4, what will be the new average ?

The average of 5 numbers is 30 . If three of the numbers are 22, 26, and 34, then what is the average of the remaining two numbers ?

The average of 7 consecutive even numbers is 50 . If the next 5 consecutive even numbers are added, what is the new average?

Average of 30 results is 25 . Later, it was found one score 55 was misread as 25. What is the correct average?

In a class of 50 students, the marks of 49 students are given, and their average marks are 75 . The teacher then added the marks of the 50th student, and the new average became 65 . What were the marks of the 50th student?

The average marks of 20 students in a class is 48.Later, 5 new students join the class, each scoring 60 marks.After this, the teacher finds that one of the original students' marks was wrongly entered as 28 instead of 68 . Find the final average marks of the class.

There are 4 numbers M1, M2, M3 and M4. Average of M1, M2 and M3 is 40. Average of M2, M3 and M4 is 34. Value of M1 is 36. What is the value of M4?

In a school library, there are three sections: Science, Mathematics, and Literature. The average number of books in the Science and Mathematics sections is 1,320. The average number of books in the Mathematics and Literature sections is 1,480.If the total number of books in all three sections is 4,050, find the number of books in the Mathematics section.

The average age of 35 students in a group is 15 years. When the teacher's age is included, the average age of the group increases by 1.25 years. What is the teacher's age (in years)?

There are 38 members in group $A$, 31 members in group B and 52 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 ₹375, ₹309 and ₹298, respectively. The total average amount (in ₹) spent per member is: