Problems on Averages SSC

PROBLEMS ON AVERAGES SSC:

1. The average of four consecutive odd numbers is 24. Find the largest number.

1. 25


2. 27


3. 29


4. 31

2. A library has an average of 510 visitors on Sundays and 240 on other day. The average number of visitors in a month of 30 days starting with sunday is

1. 280


2. 285


3. 290


4. 295

3. A batsman makes a score of 87 runs in the 17th match and thus increases his average by 3. Find his average after 17th match

1. 36


2. 37


3. 38


4. 39

4. Reeya obtained 65, 67, 76, 82 and 85 out of 100 in different subjects, What will be the average.

1. 70


2. 75


3. 80


4. 85

5. Average age of boys in a class is 16 years and average age of girls is 15 years, what is the average age of all

1. 15.5


2. 15


3. 16


4. Cant be computed.

6. Average of all prime numbers between 30 to 50

1. 37


2. 37.8


3. 39


4. 39.8

7. Average of first five multiples of 3 is

1. 9


2. 11


3. 13


4. 15

8. A motorist travel to a place 150 km away at an average speed of 50 km/hr and returns ar 30 km/hr.His average speed for the whole journey in km/hr is

1. 36.5 km/hr


2. 37.5 km/hr


3. 35.5 km/hr


4. 34.5 km/hr

9. The average weight of a class of 24 students is 35 kg. If the weight of the teacher be included, the average rises by 400 g. The weight of the teacher is

1. 45


2. 50


3. 55


4. 60

10. The average of six numbers is X and the average of three of these is Y.If the average of the remaining three is z, then

1. x = y + z


2. 2x = y + z


3. x = 2y + z


4. x = y + 2z

11. If the average marks of three batches of 55, 60 and 45 students respectively is 50, 55, 60, then the average marks of all the students is

1. 54.48


2. 54.68


3. 54.60


4. 54.58

12. Average weight of 10 people increased by 1.5 kg when one person of 45 kg is replaced by a new man. Then weight of the new man is

1. 50


2. 55


3. 60


4. 65

13. Average of 10 numbers is zero. At most how many numbers may be greater than zero

1. 0


2. 1


3. 5


4. 9

14. Find the sum of first 30 natural numbers

1. 470


2. 468


3. 465


4. 463

15. Find the average of first 10 multiples of 7

1. 35.5


2. 37.5


3. 38.5


4. 40.5

16. Average of 10 matches is 32, How many runs one should should score to increase his average by 4 runs.

1. 70


2. 76


3. 78


4. 80

17. When a student weighing 45 kgs left a class, the average weight of the remaining 59 students increased by 200g. What is the average weight of the remaining 59 students

1. 55


2. 56


3. 57


4. 58

18. Find the average of all numbers between 6 and 34 which are divisible by 5

1. 15


2. 20


3. 25


4. 30

18. Find the average of all numbers between 6 and 34 which are divisible by 5

1. 15


2. 20


3. 25


4. 30

19. Average of five numbers is 27. If one number is excluded the average becomes 25. The excluded number is

1. 35


2. 45


3. 55


4. 65

20. The average score of a cricketer for ten matches is 38.9 runs. If the average for first six matches is 42, then average for last four matches is

1. 33.25


2. 32.25


3. 34.25


4. 34.50

21. The average age of the mother and her six children is 12 years which is reduced by 5 years if the age of the mother is excluded. How old is the mother

1. 40


2. 41


3. 42


4. 43

22. The average age of husband, wife and their child 3 years ago was 27 years and that of wife and the child 5 years ago was 20 years. The present age of the husband is

1. 40


2. 35


3. 45


4. 55

CRACK SSC CGL 2016.

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