• 1. 
    The average marks of 5 students in a class is 52. If two students having marks 59 and 66 are included in the class, what is the new average?

  • 53
  • 56
  • 54
  • 55
  • 2. 
    If the average of 20 number is 40. One number is read 29 instead of 92. Find the new average.

  • 43.15
  • 25.65
  • 40
  • 42.65
  • 3. 
    The average run scored by a batsman in 20 innings was 40. He scored two back to back centuries (hundred in each) but in his 23rd innings he got out in a low score for that his final average after 23 innings is 45. How many runs did the batsman score in his 23rd innings?

  • 45
  • 36
  • 38
  • 35
  • 4. 
    Out of five numbers A, B, C, D and E, the average of the first four numbers A, B, C and D is greater than the average of the last four numbers B, C, D and E by 35. Find the differences between A and E.

  • 80
  • 120
  • 130
  • 140
  • 5. 
    The average monthly salary of a group of 7 workers in a factory is Rs. 2260. If the manager’s salary is added, the average salary becomes Rs. 3500 per month. What is the manager’s salary per month?

  • Rs. 14,560
  • Rs. 12,180
  • Rs. 13,180
  • Rs. 15,280
  • 6. 
    The number of students in class VI, VII and VIII is 800,1600 and 1200. Find the average number of students.

  • 1200
  • 1400
  • 1600
  • 1500
  • 7. 
    The average of a batsman in 11 innings is 46 and his average in first 5 innings is 36 while in last 5 innings is 50. Find the runs he scored in his 6th innings.

  • 70
  • 76
  • 78
  • 80
  • 8. 
    Average of 15 persons in a group is 20 years. After joining one person to the group, the average age of the group is increase by 5 years. Find the age of new person.

  • 100 years
  • 120 years
  • 50 years
  • 135 years
  • 9. 
    The captain of the cricket team of 11 members is 26 years old and the wicket keeper is 3 years older than captain. If the ages of these two are excluded, the average of the remaining players is one year less than the average age of the whole team. What is the average age of the team?

  • 23 years
  • 24 years
  • 25 years
  • none of these
  • 10. 
    The average of 5, 11, 16, x, 14 is 12. Then find the value of x.

  • 10
  • 12
  • 14
  • 13
  • 11. 
    The average expenditure of a man for the first 4 months of a year is Rs. 3000 and for the next eight months it is Rs. 2000. He saves Rs. 8000 during the year. His average monthly income is

  • Rs.3600
  • Rs.3300
  • Rs.3000
  • Rs.2800
  • 12. 
    A class has 40 students. During an examination in Science 4 students scored 100 marks each. 6 got zero each and the average of the rest was 40. What is the average of the whole class?

  • 50
  • 46
  • 40
  • 44
  • 13. 
    In an examination, Soma scored an average of 76 numbers in three subjects but later it was found that the examiner mistakenly gave 68 instead of 80 in one subject. Find his actual average score.

  • 79
  • 82
  • 80
  • 81
  • 14. 
    Average of 17 numbers is 153. Average of first 9 numbers is 165. Average of last 9 number is 151. Find 9th number.

  • 242
  • 244
  • 245
  • 243
  • 15. 
    The average score of a batsman in 62 innings is 42 runs. If his highest and lowest innings are removed then the average is decreased by 2. If the difference between the highest and lowest score is 196. Then find the higest score?

  • 200
  • 198
  • 202
  • 204
  • 16. 
    The average of 5 consecutive numbers is 62.Find the average of smaller and largest number.

  • 64
  • 60
  • 63
  • 62
  • 17. 
    Five students are P, Q, R, S, and T gets 300, 310, 250, 280, and 320 marks in an exam respectively. The average marks of P, Q, R, S, and T.

  • 280
  • 265
  • 293
  • 292
  • 18. 
    Among 5 numbers, first number is double of second number and three-fourth of third number. The average of 5 numbers is 55. If the sum of remaining two numbers is 88, find the value of 3rd number.

  • 88
  • 60
  • 77
  • 66
  • 19. 
    Average of 6 numbers is 20. If 5 is added to each numbers, then what will be the new average?

  • 25
  • 24
  • 21
  • 23
  • 20. 
    The average age of group of 12 girls is 15 years and that of another group of 20 girls is 24 years. What is the average age of the two group mixed together is?

  • 20.6 years
  • 25 years
  • 24 years
  • 21.6 years
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