BANKING TEST SERIES (AVERAGES 3)

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Welcome to your BANKING TEST SERIES (AVERAGES 3)

1. The average age of a group of 20 tourists is 14 years. The age of the only girl member of the group is 2 years less than the average age of the group. If the age of guide is included the average age increases by 2 years. Find the difference between the ages of the guide and the girl member of group?

2. The average marks obtained by the students of 3 departments is 848. If the average marks obtained by 15 students of science department is 64 and the average marks of 12 students of Hindi department is 72. Find the average marks obtained by the students of Mathematics department having 9 students.

3. The average of 8 numbers is 28. If all numbers are multiplied by 3 and then subtracted by 3, what will be the value of 88.89% of the new average?

4. The average marks of A, B and C in Maths is 84. The average marks of A and B are 5 more than average marks of B and C and difference in marks of B and A is 7 in same subject, where B is greater than A. Find the marks of C in Maths.

5. A toy maker makes 10 Toys on Monday, 13 Toys on Tuesday, 12 Toys on Wednesday, 11 Toys on Thursday and 12 Toys on Friday. If the maker is paid x rupees for making every 10 Toys and y rupees for making every extra Toy, then find the average daily earning of the maker.

6. In an examination result, it was found that the average marks scored by the top 15 students is 90.4. Out of these, the average marks of the top ten students is 93.6, while that of the last four is 84.5. How many marks did the 11th student scored?

7. The average runs scored by P in his 40 innings is 120. If he is out without scoring in 41st inning and he scored average runs of 60 in his next 4 innings. What are average runs scored by him in 45 innings?

8. The average of 60 students is 18 years. Among these 60 students, the average age of a group of 34 students is 15 years. What is the average (approx.) age of the group of remaining 26 students?

9. The average of 15 observations was found to be 30. Later, it was observed that 41 was wrongly taken as 14 and 23 as 32. Also, observation 27 and 46 were not included. Find the correct average.

10. The average weight of 6 persons decreases by 3 kg when one of them weighing 80 kg is replaced by a new person. The weight (in kg) of the new person is

11. The average age of 40 students of a class is 15 years. When 10 new students are admitted, the average age is increased by 0.2 years. The average age of new students is

12. The average of first three numbers of a set of six numbers is 60. The average of the second, third and fourth numbers is 20 and the average of the third, fourth and fifth numbers is 30. The average of last three numbers is 40. What is the average of first, fifth and sixth number of the set?

13. Given below are two quantities named A and B. Based on the given information, you have to determine the relation between the two quantities.
You should use the given data and your knowledge of Mathematics to choose from the possible answers.
Quantity A: The average age of a group of students going for trekking from class A is 12 years. The average age of 25 students from class B is 14 years and they are also joining the trekking trip. Then, the average age of the total group of students going for trekking is 13 years. The number of students in class A is:
Quantity B: The average salary of all the staff in an institute is Rs. 6000. The average salary of 8 workers is Rs. 5000 and the average salary of the other officers is Rs. 8000. The difference in number of workers and number of officers is:

14. A man purchased spirit for three consecutive years. In the first year, he purchased spirit at the rate of Rs. 5 per litre, in the second year, at the rate of Rs. 6.00 per litre and in the third year, at Rs. 7.50 per litre. If he purchased spirit worth Rs. 7,500 each year, the average price of spirit per litre for three years is. 

15. The average age of 10 men is increased by 2 years when two of them whose age are 24 and 26 years replaced by two new men. The average age of the two new men is.

16. Given below are three quantities named A, B and C. Based on the given information, determine the relation among the three quantities.
A sum of Rs. 8000 is divided between X, Y and Z, such that the average share of X and Y is Rs. 200 more than that of Y and Z, while the average share of X and Z is Rs. 125 less than that of X and Y.

Quantity A: What is the average share of X and Y?
Quantity B: What is the average share of X and Z?
Quantity C: What is the average share of Y and Z?

17. A person buys sugar at Rs. 40, Rs. 45 and Rs. 50 per kg for three consecutive months. What is the approximate average cost per kg of sugar, if he spends Rs. 2000 per month?

18. Of the five numbers, the first number is five more than second number , the second number is half of the third number, the third number is 2/3rd of the forth number and the fourth number is twice of the fifth number. The average of the five numbers is 18. Find the average of smallest and largest number.

19. Given below are quantities named A and B. Based on the given information, you have to determine the relation between the two quantities. You should use the given data and your knowledge of mathematics to choose among the possible answer.

Quantity A: The average weight of 4 students is 40kg. If one more person joins the team then average weight becomes 42kg, then find the weight of the new person.
Quantity B: The price of sugar increases by 20% and the person can buy 9kg less sugar. Find the final quantity of sugar he has.

20. If the average weight of 10 boys in a boat is 55 kg. If one of the boys left the boat and a new boy whose weight is 80 Kg joins the boat then the average weight of boys increased by 1 kg. Find the weight of the boy who left the boat.

21. In a class of 80 boys and 100 girls, the average marks scored by boys is 137 and average marks scored by girls is 162. Find the average marks of all students in a class.

22. A museum has an average of 200 visitors on Weekends and 50 on weekdays. The average number of visitors per day in a month of 30 days starting with Saturday is

23. Sushil works 6 days in a week i.e. from Monday to Saturday. His average income for first four days was Rs. 60 and for the last 3 days from the 6 days was Rs. 75. Income of the fourth day is Rs. 63. Find the average income of 6 days.

24. If total corona cases in all the states of India are 16,24,000 and the average of recovered and deceased persons in all the states of India is 20,000, and 2,000 respectively then find the average of present active cases in all the states of India if the number of states in India is 28.

25. A bought a certain number of Fiction books for Rs. 4500 and 40 Comic books of Rs. 9000. The average price of fiction and comic book is Rs. 250. Find the average number of the total books.

26. The average of 40 numbers is 35. After all the calculation it is found that two numbers are wrongly written as 86 and 54 instead of 68 and 45. Find the new average.

27. Average of 7 numbers is 6 and average of first 4 numbers is 4.5 and the average of last 4 numbers is 7.75. Find the value of middle number.

28. A mark list of 30 students prepared by the teacher and average of their marks was 68. But, mark of one student was written as 35 instead of 53. Find the correct average marks.

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