Sem pgdm/mba (2022-24) assignment average Submission Date

Sem 1 PGDM/MBA (2022-24)
ASSIGNMENT 7
Average
Submission Date: 20.11.22 (Sunday) Time 11:59PM
Instructions:

1. 
   Give explanation in brief for answers. Only answers not allowed.
   
2. 
   Copy cases will be strictly dealt with.
   
3. 
   Assignments without name and roll no. will not be checked.
   

1. 
   The average monthly income of A and B is Rs. 5050. The average monthly income of B and C is Rs. 6250 and the average monthly income of A and C is Rs. 5200. What is the monthly income of A?
   
2. 
   The average weight of 16 boys in a class is 50.25 kg and that of the remaining 8 boys is 45.25 kg. Find the average weights of all the boys in the class.
   
3. 
   A student's mark was wrongly entered as 83 instead of 63. Due to that the average marks for the class got increased by 1/2. What is the number of students in the class?
   
4. 
   The average weight of A, B and C is 45 kg. If the average weight of A and B be 40 kg and that of B and C be 43 kg, what is the weight of B?
   
5. 
   If the average marks of three batches of 55, 60 and 45 students respectively are 50, 55, 60, what is the average marks of all the students?
   
6. 
   The average weight of 8 person's increases by 2.5 kg when a new person comes in place of one of them weighing 65 kg. What is the weight of the new person?
   
7. 
   A batsman makes a score of 87 runs in the 17th inning and thus increases his averages by 3. What is his average after 17th inning?
   
8. 
   The average age of 36 students in a group is 14 years. When teacher's age is included to it, the average increases by one. Find out the teacher's age in years?
   
9. 
   The batting average for 40 innings of a cricket player is 50 runs. His highest score exceeds his lowest score by 172 runs. If these two innings are excluded, the average of the remaining 38 innings is 48 runs. Find out the highest score of the player.
   
10. 
    There were 46 students in a Boys hostel. Due to the admission of eight new students the expenses of the hostel mess were increased by Rs.42 per day while the average expenditure per head diminished by Rs 1. What was the original expenditure of the hostel mess?
    
11. 
    The average salary of the entire staff in a office is Rs 250 per month. The average salary of officers is Rs 520 and that of non-officers is Rs. 200. If the number of officers is 15, then find the number of non–officers in the office.
    
12. 
    The average age of a group of persons going for tour to Shimla is 22 years. 25 new persons with an average age of 10 years join the group and their average age becomes 12 years. The number of persons initially going for tour is?
    
13. 
    The average age of students of a class is 15.8 years. The average age of boys in the class is 16.4 years and that of the girls is 15.4 years. The ratio of the number of boys to the number of girls in the class is:
    
14. 
    The average price of 10 books is Rs. 12 while the average price of 8 of these books is Rs. 11.75. Of the remaining two books, if the price of one book is 60% more than the price of the other, what is the price of each of these two books?
    
15. 
    The average age of 30 boys of a class is equal to 14 years. When the age of the class teacher is included the average becomes 15 years. Find the age of the class teacher?
    
16. 
    The Average of marks obtained by 120 candidates in a certain examination is 35. If the average mark of passed candidates is 39 and that of failed candidates is 15, what is the number of candidates who passed the examination?
    
17. 
    The average of 11 results is 50. If the average of first 6 results is 49 and that of last 6is 52, find the sixth result?
    
18. 
    The average age of a family of 6 members is 22 years. If the age of the youngest member be 7 years, then what was the average age of the family at the birth of the youngest member?
    
19. 
    The average age of a family of 8 members is 24 years. If the age of the youngest member be 6 years, the average age of the family at the birth of the youngest member was?
    
20. 
    The average salary of all the workers in a workshop is Rs.8000. The average salary of 7 technicians is Rs.12000 and the average salary of the rest is Rs.6000. How many workers are there in the workshop?