Mean Median Mode Worksheet for Maths Olympiad

Maths Olympiad topic 27: Data handling: mean, median, mode · Set 658 · 40 questions

How to solve it (Work with totals): Mean = total ÷ how many; so total = mean × how many. Median: put the numbers in order and take the middle one. Mode: the number that appears most often. A number added: new mean = (old total + the number) ÷ (how many + 1).

1. 1.What is the mean of 15, 5, 12, 6 and 17? (a) 13 (b) 11 (c) 12 (d) 10
2. 2.What is the median of 37, 11, 20, 30 and 24? (a) 25 (b) 30 (c) 20 (d) 24
3. 3.What is the median of 8, 30, 11, 38, 9, 22 and 40? (a) 30 (b) 11 (c) 22 (d) 38
4. 4.What is the median of 31, 36, 38, 27 and 15? (a) 27 (b) 36 (c) 38 (d) 31
5. 5.What is the mode of 10, 10, 1, 1, 10, 11 and 12? (a) 11 (b) 10 (c) 1 (d) 12
6. 6.The mean of 3 numbers is 13. When the number 21 is added to them, what is the new mean? (a) 13 (b) 16 (c) 15 (d) 17
7. 7.What is the mean of 10, 8, 20 and 18? (a) 15 (b) 16 (c) 14 (d) 13
8. 8.The mean of 7 numbers is 33. When the number 17 is added to them, what is the new mean? (a) 32 (b) 31 (c) 25 (d) 33
9. 9.What is the median of 1, 24, 28, 5 and 37? (a) 19 (b) 5 (c) 28 (d) 24
10. 10.What is the mean of 5, 13, 15, 18 and 9? (a) 13 (b) 10 (c) 15 (d) 12
11. 11.What is the mean of 12, 16, 20, 20 and 17? (a) 16 (b) 17 (c) 19 (d) 18
12. 12.What is the median of 36, 14, 8, 4, 16, 39 and 7? (a) 16 (b) 4 (c) 8 (d) 14
13. 13.What is the median of 11, 14, 30, 9, 24, 34 and 22? (a) 24 (b) 14 (c) 22 (d) 9
14. 14.What is the mode of 2, 3, 2, 20, 3, 2 and 7? (a) 2 (b) 3 (c) 7 (d) 20
15. 15.What is the mean of 11, 16, 5 and 12? (a) 10 (b) 11 (c) 13 (d) 12
16. 16.The mean of 4 numbers is 21. When the number 16 is added to them, what is the new mean? (a) 20 (b) 21 (c) 19 (d) 22
17. 17.What is the mean of 17, 15, 6, 13 and 9? (a) 13 (b) 10 (c) 12 (d) 15
18. 18.What is the median of 35, 19, 20, 4 and 40? (a) 20 (b) 35 (c) 21 (d) 19
19. 19.The mean of 4 numbers is 12. When the number 2 is added to them, what is the new mean? (a) 10 (b) 12 (c) 11 (d) 7
20. 20.What is the mean of 13, 4, 8, 11 and 9? (a) 8 (b) 9 (c) 11 (d) 10
21. 21.What is the mode of 7, 17, 7, 17, 1, 19 and 7? (a) 17 (b) 7 (c) 1 (d) 19
22. 22.The mean of 8 numbers is 12. When the number 3 is added to them, what is the new mean? (a) 13 (b) 12 (c) 10 (d) 11
23. 23.What is the median of 2, 24, 40, 18 and 33? (a) 18 (b) 33 (c) 24 (d) 40
24. 24.What is the mean of 16, 10, 10 and 4? (a) 11 (b) 10 (c) 8 (d) 9
25. 25.What is the median of 26, 15, 5, 12, 36, 17 and 2? (a) 16 (b) 17 (c) 12 (d) 15
26. 26.What is the median of 5, 1, 15, 31 and 36? (a) 31 (b) 5 (c) 16 (d) 15
27. 27.What is the mode of 13, 19, 6, 19, 13, 10 and 19? (a) 10 (b) 13 (c) 6 (d) 19
28. 28.What is the mean of 17, 18, 17 and 20? (a) 19 (b) 17 (c) 24 (d) 18
29. 29.What is the median of 15, 40, 27, 25, 13, 30 and 10? (a) 25 (b) 15 (c) 26 (d) 27
30. 30.What is the mean of 7, 7, 6, 4, 19 and 5? (a) 10 (b) 8 (c) 7 (d) 9
31. 31.What is the median of 30, 19, 2, 1 and 37? (a) 30 (b) 2 (c) 20 (d) 19
32. 32.What is the mode of 1, 7, 7, 8, 1, 1 and 15? (a) 1 (b) 15 (c) 8 (d) 7
33. 33.The mean of 6 numbers is 26. When the number 33 is added to them, what is the new mean? (a) 26 (b) 29 (c) 28 (d) 27
34. 34.What is the mode of 8, 6, 18, 18, 10, 10 and 18? (a) 10 (b) 8 (c) 6 (d) 18
35. 35.What is the mean of 5, 12, 3, 13 and 7? (a) 10 (b) 9 (c) 7 (d) 8
36. 36.What is the mean of 5, 16, 14, 17 and 3? (a) 10 (b) 13 (c) 12 (d) 11
37. 37.The mean of 5 numbers is 17. When the number 23 is added to them, what is the new mean? (a) 20 (b) 17 (c) 19 (d) 18
38. 38.What is the mean of 12, 5, 20, 8 and 10? (a) 12 (b) 10 (c) 13 (d) 11
39. 39.What is the median of 40, 33, 3, 29 and 12? (a) 33 (b) 12 (c) 29 (d) 3
40. 40.What is the mean of 7, 8, 13, 9, 19 and 22? (a) 15 (b) 12 (c) 13 (d) 14

Free maths olympiad lessons, practice and worksheets at talentjr.in/maths-olympiad