Calendar Worksheet for Maths Olympiad

Maths Olympiad topic 12: Calendar puzzles · Set 9 · 40 questions

How to solve it (Throw away the weeks): Count the days between the two dates (use the month lengths: 30 or 31, February 28 in an ordinary year). Divide by 7: whole weeks do not change the day; the remainder does. Count the remainder on from the starting day.

1. 1.If 27 September is a Thursday, what day of the week is 18 October? (a) Wednesday (b) Saturday (c) Friday (d) Thursday
2. 2.If 1 December is a Tuesday, what day of the week is 12 December? (a) Sunday (b) Saturday (c) Friday (d) Monday
3. 3.Today is Sunday. What day of the week will it be after 13 days? (a) Saturday (b) Sunday (c) Friday (d) Monday
4. 4.If 8 August is a Saturday, what day of the week is 24 August? (a) Monday (b) Sunday (c) Tuesday (d) Wednesday
5. 5.If 15 January is a Tuesday, what day of the week is 28 January? (a) Monday (b) Wednesday (c) Tuesday (d) Sunday
6. 6.If 1 August is a Sunday, what day of the week is 12 August? (a) Wednesday (b) Thursday (c) Friday (d) Saturday
7. 7.If 13 August is a Wednesday, what day of the week is 26 August? (a) Monday (b) Thursday (c) Tuesday (d) Wednesday
8. 8.If 11 November is a Wednesday, what day of the week is 18 December? (a) Saturday (b) Thursday (c) Sunday (d) Friday
9. 9.If 1 May is a Thursday, what day of the week is 11 May? (a) Tuesday (b) Monday (c) Saturday (d) Sunday
10. 10.If 7 October is a Monday, what day of the week is 21 October? (a) Wednesday (b) Monday (c) Tuesday (d) Sunday
11. 11.If 2 October is a Thursday, what day of the week is 13 October? (a) Monday (b) Sunday (c) Wednesday (d) Tuesday
12. 12.If 15 September is a Saturday, what day of the week is 5 October? (a) Friday (b) Saturday (c) Sunday (d) Thursday
13. 13.Today is Sunday. What day of the week will it be after 22 days? (a) Tuesday (b) Wednesday (c) Monday (d) Sunday
14. 14.Today is Friday. What day of the week will it be after 80 days? (a) Sunday (b) Tuesday (c) Monday (d) Wednesday
15. 15.Today is Wednesday. What day of the week will it be after 13 days? (a) Tuesday (b) Monday (c) Thursday (d) Wednesday
16. 16.If 10 June is a Sunday, what day of the week is 2 July? (a) Sunday (b) Wednesday (c) Tuesday (d) Monday
17. 17.If 1 May is a Sunday, what day of the week is 10 May? (a) Monday (b) Tuesday (c) Wednesday (d) Thursday
18. 18.If 15 March is a Monday, what day of the week is 11 April? (a) Sunday (b) Saturday (c) Tuesday (d) Monday
19. 19.If 21 January is a Tuesday, what day of the week is 14 February? (a) Saturday (b) Thursday (c) Friday (d) Sunday
20. 20.Today is Thursday. What day of the week will it be after 41 days? (a) Wednesday (b) Friday (c) Thursday (d) Tuesday
21. 21.Today is Thursday. What day of the week will it be after 18 days? (a) Tuesday (b) Wednesday (c) Sunday (d) Monday
22. 22.Today is Tuesday. What day of the week will it be after 49 days? (a) Tuesday (b) Thursday (c) Wednesday (d) Monday
23. 23.Today is Saturday. What day of the week will it be after 71 days? (a) Saturday (b) Tuesday (c) Sunday (d) Monday
24. 24.Today is Saturday. What day of the week will it be after 31 days? (a) Thursday (b) Wednesday (c) Monday (d) Tuesday
25. 25.Today is Friday. What day of the week will it be after 77 days? (a) Friday (b) Thursday (c) Saturday (d) Sunday
26. 26.If 30 March is a Monday, what day of the week is 13 April? (a) Monday (b) Sunday (c) Wednesday (d) Tuesday
27. 27.If 16 November is a Tuesday, what day of the week is 5 December? (a) Tuesday (b) Sunday (c) Saturday (d) Monday
28. 28.If 15 August is a Saturday, what day of the week is 7 September? (a) Monday (b) Wednesday (c) Tuesday (d) Sunday
29. 29.If 10 May is a Wednesday, what day of the week is 23 May? (a) Wednesday (b) Tuesday (c) Monday (d) Thursday
30. 30.Today is Saturday. What day of the week will it be after 95 days? (a) Tuesday (b) Thursday (c) Friday (d) Wednesday
31. 31.If 2 March is a Saturday, what day of the week is 11 March? (a) Tuesday (b) Wednesday (c) Sunday (d) Monday
32. 32.Today is Tuesday. What day of the week will it be after 79 days? (a) Thursday (b) Friday (c) Saturday (d) Wednesday
33. 33.If 7 January is a Sunday, what day of the week is 23 January? (a) Wednesday (b) Thursday (c) Tuesday (d) Monday
34. 34.If 10 October is a Wednesday, what day of the week is 21 October? (a) Tuesday (b) Monday (c) Saturday (d) Sunday
35. 35.If 14 March is a Friday, what day of the week is 29 March? (a) Monday (b) Friday (c) Saturday (d) Sunday
36. 36.If 26 July is a Thursday, what day of the week is 5 August? (a) Monday (b) Tuesday (c) Saturday (d) Sunday
37. 37.Today is Wednesday. What day of the week will it be after 45 days? (a) Friday (b) Sunday (c) Monday (d) Saturday
38. 38.If 4 March is a Saturday, what day of the week is 14 March? (a) Monday (b) Wednesday (c) Thursday (d) Tuesday
39. 39.If 29 June is a Sunday, what day of the week is 11 July? (a) Thursday (b) Saturday (c) Sunday (d) Friday
40. 40.Today is Thursday. What day of the week will it be after 14 days? (a) Saturday (b) Thursday (c) Wednesday (d) Friday

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