Quiz 2
Averages Questions & Answers
Hello Aspirants, Today in this quiz we have added some Average Questions & Answers which are asked previously in SSC, Bank and Railway exams. This will help you to score more marks in your competitive exams.
1. A student was asked to find the arithmetic mean of the following 12 numbers :
3, 11, 7, 9, 15, 13, 8, 19, 17, 21, 14 and x He found the mean to be 12. The value of x will be :
(1) 3 (2) 7 (3) 17 (4) 31
2. The average of the marks obtained in an examination by 8 students was 51 and by 9 other students was 68. The average marks of all 17 students was :
(1) 59 (2) 59.5 (3) 60 (4) 60.5
3. If the average marks of three batches of 55, 60 and 45 students respectively is 50, 55 and 60, then the average marks of all the students is
(1) 54.68 (2) 53.33 (3) 55 (4) None of these
4. The average of 30 results is 20 and the average of other 20 results is 30. What is the average of all the results ?
(1) 24 (2) 48 (3) 25 (4) 50
5. If the average weight of 6 student is 50 kg; that of 2 students is 51 kg; and that of other 2 students is 55 kg; then the average weight of all students is
(1) 61 kg (2) 51.5 kg (3) 52 kg (4) 51.2 kg
6. The average of 10 numbers is 7.If each number is multiplied by 12, then the average of the new set of numbers will be
(1) 7 (2) 19 (3) 82 (4) 84
7. The average income of 40 persons is 4200 and that of another 35 persons is 4000. The average income of the whole group is :
(1) 4100 (2) 4106 (3) 4106 (4) 4108
8 The average weight of five persons sitting in a boat is 38 kg.The average weight of the boat and the persons sitting in the boat is 52kg. What is the weigh of the boat ?
(1) 228 kg (2) 122 kg (3) 232 kg (4) 242 kg
9. The average marks of 32 boys of section A of class X is 60 whereas the average marks of 40 boys of section B of class X is 33. The average marks for both the sections combined together is
(1) 44 (2) 45 (3) 46.5 (4) 45.5
10– Total weekly emoluments of the workers of a factory is 1534. Average weekly emolument of a worker is 118. The number of workers in the factory is :
(1) 16 (2)14 (3) 13 (4)12
11. 12 kg of rice costing 30 per kg is mixed with 8 kg of rice costing 40 per kg.The average per kg price of mixed rice is
(1) 38 (2) 37 (3) 35 (4) 34
12. A library has an average number of 510 visitors on Sunday and 240 on other days. The average number of visitors per day in a month of 30 days beginning with Sunday is :
(1) 285 (2) 295 (3) 300 (4) 290
13. The average of 30 numbers is 40 and that of other 40 numbers is 30. The average of all the numbers is
(1) 34.29 (2) 35 (3) 34 (4) 34.5
14. The average of 20 numbers is 15 and the average of first five is 12. The average of the rest is
(1) 16 (2) 15 (3) 14 (4)13
15. The average monthly expenditure of a family is 2,200 during first three months, 2,550 during next four months and 3,120 during last five months of the year. If the total savings during the year was 1,260, what is the average monthly income ?
(1) 1,260 (2) 1,280 (3) 2,805 (4) 2,850
16. Find the average of 1.11, 0.01, 0.101, 0.001, 0.11
(1) 0.2664 (2) 0.2554 (3) 0.1264 (4) 0.1164
Average Questions & Answers
ANSWER KEY
1. (2) 2. (3) 3. (1) 4. (1)
5. (4) 6. (4) 7. (3) 8. (2)
9. (2) 10. (3) 11. (4) 12. (1)
13. (1) 14. (1) 15. (3) 16. (1)
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Averages Questions & Answers Hello Aspirants, Today in this quiz we have added some Average Questions & Answers which are asked previously in SSC, Bank and Railway exams. This will help you to score more marks in your competitive exams. 1. A student was asked to find the arithmetic mean of the following 12 numbers …