Q1
Not Answered
Q1. Average of 9 numbers is 49. After adding 29, what is the new average?
New average = (9x49+29)/10 = 47.
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General Aptitude
Averages
Master averages via missing-value, weighted-average, and group-average aptitude question patterns.
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20 questions
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Explanations included
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Q2
Not Answered
Q2. Average of 5 numbers is 65. 4 numbers are 30, 93, 67, 29. Find the missing number.
Total sum = 5x65 = 325. Missing = Total - Known sum = 106.
Q3
Not Answered
Q3. Average of 8 numbers is 37. After adding 37, what is the new average?
New average = (8x37+37)/9 = 37.
Q4
Not Answered
Q4. Class A has 45 students with average marks 65. Class B has 45 students with average 57. Find combined average.
Combined average = (45x65+45x57)/(90) = 61.
Q5
Not Answered
Q5. Average of 7 numbers is 44. After adding 68, what is the new average?
New average = (7x44+68)/8 = 47.
Q6
Not Answered
Q6. Class A has 49 students with average marks 42. Class B has 49 students with average 62. Find combined average.
Combined average = (49x42+49x62)/(98) = 52.
Q7
Not Answered
Q7. Average of 9 numbers is 59. After adding 39, what is the new average?
New average = (9x59+39)/10 = 57.
Q8
Not Answered
Q8. Class A has 49 students with average marks 46. Class B has 49 students with average 62. Find combined average.
Combined average = (49x46+49x62)/(98) = 54.
Q9
Not Answered
Q9. Average of 5 numbers is 46. 4 numbers are 73, 47, 54, 48. Find the missing number.
Total sum = 5x46 = 230. Missing = Total - Known sum = 8.
Q10
Not Answered
Q10. Class A has 48 students with average marks 52. Class B has 48 students with average 70. Find combined average.
Combined average = (48x52+48x70)/(96) = 61.
Q11
Not Answered
Q11. Average of 5 numbers is 42. 4 numbers are 47, 44, 95, 76. Find the missing number.
Total sum = 5x42 = 210. Missing = Total - Known sum = -52.
Q12
Not Answered
Q12. Class A has 24 students with average marks 61. Class B has 24 students with average 37. Find combined average.
Combined average = (24x61+24x37)/(48) = 49.
Q13
Not Answered
Q13. Average of 5 numbers is 48. 4 numbers are 95, 49, 35, 77. Find the missing number.
Total sum = 5x48 = 240. Missing = Total - Known sum = -16.
Q14
Not Answered
Q14. Class A has 50 students with average marks 43. Class B has 50 students with average 69. Find combined average.
Combined average = (50x43+50x69)/(100) = 56.
Q15
Not Answered
Q15. Average of 7 numbers is 70. 6 numbers are 47, 21, 69, 50, 64, 91. Find the missing number.
Total sum = 7x70 = 490. Missing = Total - Known sum = 148.
Q16
Not Answered
Q16. Average of 6 numbers is 49. 5 numbers are 20, 63, 26, 43, 53. Find the missing number.
Total sum = 6x49 = 294. Missing = Total - Known sum = 89.
Q17
Not Answered
Q17. Class A has 44 students with average marks 57. Class B has 44 students with average 43. Find combined average.
Combined average = (44x57+44x43)/(88) = 50.
Q18
Not Answered
Q18. Average of 7 numbers is 50. 6 numbers are 95, 51, 56, 71, 53, 92. Find the missing number.
Total sum = 7x50 = 350. Missing = Total - Known sum = -68.
Q19
Not Answered
Q19. Average of 6 numbers is 53. 5 numbers are 61, 78, 38, 29, 63. Find the missing number.
Total sum = 6x53 = 318. Missing = Total - Known sum = 49.
Q20
Not Answered
Q20. Average of 7 numbers is 47. 6 numbers are 31, 31, 65, 33, 82, 77. Find the missing number.
Total sum = 7x47 = 329. Missing = Total - Known sum = 10.
Quiz Summary
Score: 0 / 20
Accuracy: 0%
Attempted: 0 | Skipped: 20
Time: 00:00
Averages Practice Questions with Answers
Build speed and accuracy with curated averages practice. Each quiz includes solved explanations, timed mode, and instant correctness feedback.
How to prepare effectively for this topic?
Practice short timed sets daily, review every explanation, and track recurring mistakes for weekly revision.
Are these questions useful for placements and competitive exams?
Yes. The format mirrors common screening rounds with option-based answers and explanation-driven learning.