Calendar Worksheet for Maths Olympiad

Maths Olympiad topic 12: Calendar puzzles · Set 83 · 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 3 December is a Thursday, what day of the week is 13 December? (a) Tuesday (b) Sunday (c) Saturday (d) Monday
2. 2.If 23 July is a Wednesday, what day of the week is 16 August? (a) Friday (b) Sunday (c) Saturday (d) Monday
3. 3.If 13 September is a Tuesday, what day of the week is 12 October? (a) Thursday (b) Friday (c) Wednesday (d) Tuesday
4. 4.Today is Thursday. What day of the week will it be after 15 days? (a) Saturday (b) Sunday (c) Thursday (d) Friday
5. 5.If 1 December is a Tuesday, what day of the week is 15 December? (a) Thursday (b) Tuesday (c) Monday (d) Wednesday
6. 6.If 12 July is a Wednesday, what day of the week is 22 July? (a) Friday (b) Saturday (c) Sunday (d) Monday
7. 7.Today is Saturday. What day of the week will it be after 87 days? (a) Tuesday (b) Monday (c) Thursday (d) Wednesday
8. 8.If 13 October is a Wednesday, what day of the week is 17 November? (a) Tuesday (b) Thursday (c) Wednesday (d) Friday
9. 9.If 15 October is a Friday, what day of the week is 20 November? (a) Saturday (b) Monday (c) Sunday (d) Friday
10. 10.If 20 November is a Sunday, what day of the week is 2 December? (a) Friday (b) Saturday (c) Thursday (d) Sunday
11. 11.Today is Wednesday. What day of the week will it be after 63 days? (a) Thursday (b) Wednesday (c) Tuesday (d) Friday
12. 12.Today is Wednesday. What day of the week will it be after 55 days? (a) Tuesday (b) Wednesday (c) Thursday (d) Monday
13. 13.Today is Tuesday. What day of the week will it be after 55 days? (a) Tuesday (b) Wednesday (c) Monday (d) Sunday
14. 14.If 2 October is a Sunday, what day of the week is 16 October? (a) Tuesday (b) Sunday (c) Monday (d) Saturday
15. 15.If 8 December is a Thursday, what day of the week is 18 December? (a) Monday (b) Sunday (c) Saturday (d) Tuesday
16. 16.If 9 March is a Friday, what day of the week is 20 March? (a) Thursday (b) Wednesday (c) Tuesday (d) Monday
17. 17.If 1 January is a Tuesday, what day of the week is 11 January? (a) Thursday (b) Saturday (c) Friday (d) Sunday
18. 18.Today is Wednesday. What day of the week will it be after 56 days? (a) Wednesday (b) Friday (c) Thursday (d) Tuesday
19. 19.If 4 May is a Saturday, what day of the week is 12 May? (a) Saturday (b) Monday (c) Tuesday (d) Sunday
20. 20.If 10 July is a Sunday, what day of the week is 19 August? (a) Thursday (b) Saturday (c) Friday (d) Sunday
21. 21.If 21 March is a Sunday, what day of the week is 9 April? (a) Thursday (b) Saturday (c) Sunday (d) Friday
22. 22.If 10 May is a Thursday, what day of the week is 26 May? (a) Friday (b) Sunday (c) Monday (d) Saturday
23. 23.Today is Monday. What day of the week will it be after 38 days? (a) Wednesday (b) Friday (c) Saturday (d) Thursday
24. 24.If 28 October is a Wednesday, what day of the week is 20 November? (a) Sunday (b) Friday (c) Thursday (d) Saturday
25. 25.If 29 November is a Sunday, what day of the week is 9 December? (a) Friday (b) Tuesday (c) Thursday (d) Wednesday
26. 26.If 13 April is a Thursday, what day of the week is 2 May? (a) Thursday (b) Tuesday (c) Wednesday (d) Monday
27. 27.If 6 March is a Friday, what day of the week is 17 March? (a) Tuesday (b) Wednesday (c) Thursday (d) Monday
28. 28.If 8 March is a Thursday, what day of the week is 22 March? (a) Thursday (b) Wednesday (c) Friday (d) Saturday
29. 29.If 3 October is a Friday, what day of the week is 16 October? (a) Saturday (b) Friday (c) Wednesday (d) Thursday
30. 30.If 10 October is a Friday, what day of the week is 19 October? (a) Tuesday (b) Saturday (c) Sunday (d) Monday
31. 31.If 27 August is a Sunday, what day of the week is 6 September? (a) Tuesday (b) Friday (c) Thursday (d) Wednesday
32. 32.Today is Friday. What day of the week will it be after 81 days? (a) Tuesday (b) Wednesday (c) Thursday (d) Monday
33. 33.If 13 March is a Thursday, what day of the week is 26 March? (a) Tuesday (b) Wednesday (c) Thursday (d) Friday
34. 34.If 20 October is a Tuesday, what day of the week is 10 November? (a) Tuesday (b) Thursday (c) Monday (d) Wednesday
35. 35.If 20 October is a Sunday, what day of the week is 20 November? (a) Friday (b) Wednesday (c) Thursday (d) Tuesday
36. 36.If 13 March is a Wednesday, what day of the week is 22 March? (a) Saturday (b) Thursday (c) Friday (d) Sunday
37. 37.If 10 March is a Wednesday, what day of the week is 21 March? (a) Saturday (b) Monday (c) Tuesday (d) Sunday
38. 38.If 16 July is a Sunday, what day of the week is 7 August? (a) Wednesday (b) Monday (c) Tuesday (d) Sunday
39. 39.Today is Wednesday. What day of the week will it be after 35 days? (a) Tuesday (b) Wednesday (c) Friday (d) Thursday
40. 40.If 20 April is a Saturday, what day of the week is 12 May? (a) Monday (b) Sunday (c) Saturday (d) Tuesday

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