Mean Median Mode Worksheet for Maths Olympiad

Maths Olympiad topic 27: Data handling: mean, median, mode · Set 756 · 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 mode of 6, 8, 6, 20, 2, 2 and 2? (a) 6 (b) 20 (c) 2 (d) 8
2. 2.The mean of 3 numbers is 39. When the number 55 is added to them, what is the new mean? (a) 43 (b) 44 (c) 39 (d) 47
3. 3.What is the median of 13, 10, 28, 16 and 1? (a) 13 (b) 28 (c) 10 (d) 16
4. 4.What is the mean of 4, 2, 8, 12, 12 and 10? (a) 8 (b) 9 (c) 7 (d) 10
5. 5.What is the mean of 5, 18, 11, 5 and 16? (a) 10 (b) 13 (c) 12 (d) 11
6. 6.What is the median of 38, 4, 10, 20 and 26? (a) 20 (b) 10 (c) 21 (d) 26
7. 7.What is the median of 33, 36, 11, 18, 38, 13 and 5? (a) 22 (b) 18 (c) 33 (d) 13
8. 8.What is the mode of 7, 5, 5, 2, 6, 5 and 7? (a) 6 (b) 2 (c) 5 (d) 7
9. 9.The mean of 8 numbers is 27. When the number 45 is added to them, what is the new mean? (a) 36 (b) 27 (c) 30 (d) 29
10. 10.What is the median of 36, 16, 4, 12 and 3? (a) 13 (b) 12 (c) 16 (d) 4
11. 11.What is the mode of 16, 2, 2, 3, 1, 1 and 2? (a) 3 (b) 16 (c) 1 (d) 2
12. 12.The mean of 3 numbers is 38. When the number 26 is added to them, what is the new mean? (a) 38 (b) 35 (c) 32 (d) 36
13. 13.What is the mean of 3, 8, 15 and 18? (a) 10 (b) 11 (c) 12 (d) 13
14. 14.What is the mode of 11, 4, 11, 4, 9, 19 and 11? (a) 4 (b) 19 (c) 9 (d) 11
15. 15.What is the median of 31, 38, 3, 30, 36, 9 and 2? (a) 30 (b) 9 (c) 31 (d) 29
16. 16.What is the mode of 20, 18, 18, 4, 4, 4 and 10? (a) 4 (b) 10 (c) 20 (d) 18
17. 17.The mean of 3 numbers is 18. When the number 6 is added to them, what is the new mean? (a) 18 (b) 12 (c) 15 (d) 16
18. 18.What is the median of 18, 14, 2, 17, 3, 11 and 30? (a) 17 (b) 11 (c) 14 (d) 15
19. 19.What is the mean of 11, 14, 10, 11 and 19? (a) 15 (b) 14 (c) 13 (d) 12
20. 20.What is the mean of 3, 16, 2, 20, 7 and 12? (a) 9 (b) 11 (c) 12 (d) 10
21. 21.The mean of 6 numbers is 39. When the number 18 is added to them, what is the new mean? (a) 35 (b) 36 (c) 39 (d) 37
22. 22.What is the mean of 16, 15, 2 and 11? (a) 12 (b) 10 (c) 11 (d) 13
23. 23.What is the mean of 6, 12, 15, 20, 6 and 19? (a) 12 (b) 13 (c) 14 (d) 15
24. 24.What is the median of 28, 13, 40, 7, 31, 4 and 12? (a) 28 (b) 12 (c) 7 (d) 13
25. 25.What is the mode of 6, 17, 3, 9, 6, 3 and 6? (a) 9 (b) 6 (c) 3 (d) 17
26. 26.What is the mean of 6, 2, 17 and 23? (a) 16 (b) 13 (c) 11 (d) 12
27. 27.What is the median of 30, 6, 26, 19, 39, 1 and 16? (a) 16 (b) 19 (c) 20 (d) 26
28. 28.What is the mean of 14, 12, 16, 11, 3 and 10? (a) 13 (b) 10 (c) 12 (d) 11
29. 29.The mean of 5 numbers is 10. When the number 28 is added to them, what is the new mean? (a) 10 (b) 14 (c) 13 (d) 19
30. 30.What is the median of 24, 30, 38, 25, 13, 40 and 21? (a) 30 (b) 24 (c) 26 (d) 25
31. 31.The mean of 3 numbers is 13. When the number 5 is added to them, what is the new mean? (a) 11 (b) 13 (c) 12 (d) 9
32. 32.What is the median of 23, 1, 11, 32 and 12? (a) 23 (b) 11 (c) 12 (d) 13
33. 33.What is the mode of 18, 18, 19, 17, 11, 19 and 19? (a) 19 (b) 18 (c) 17 (d) 11
34. 34.What is the median of 13, 15, 40, 6 and 36? (a) 36 (b) 40 (c) 22 (d) 15
35. 35.What is the median of 30, 5, 4, 8, 9, 36 and 28? (a) 10 (b) 8 (c) 28 (d) 9
36. 36.What is the mode of 17, 9, 16, 10, 10, 17 and 17? (a) 10 (b) 16 (c) 17 (d) 9
37. 37.What is the mean of 4, 15, 11, 20, 3 and 19? (a) 13 (b) 11 (c) 12 (d) 14
38. 38.The mean of 7 numbers is 28. When the number 12 is added to them, what is the new mean? (a) 20 (b) 28 (c) 26 (d) 27
39. 39.The mean of 7 numbers is 11. When the number 3 is added to them, what is the new mean? (a) 11 (b) 7 (c) 9 (d) 10
40. 40.The mean of 9 numbers is 13. When the number 3 is added to them, what is the new mean? (a) 13 (b) 12 (c) 11 (d) 8

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