Calendar Worksheet for Maths Olympiad

Maths Olympiad topic 12: Calendar puzzles · Set 28 · 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 13 December is a Sunday, what day of the week is 23 December? (a) Tuesday (b) Friday (c) Thursday (d) Wednesday
2. 2.If 8 July is a Saturday, what day of the week is 21 July? (a) Saturday (b) Thursday (c) Friday (d) Sunday
3. 3.If 11 July is a Thursday, what day of the week is 18 August? (a) Tuesday (b) Monday (c) Sunday (d) Saturday
4. 4.If 9 January is a Sunday, what day of the week is 21 January? (a) Sunday (b) Friday (c) Saturday (d) Thursday
5. 5.Today is Thursday. What day of the week will it be after 30 days? (a) Sunday (b) Friday (c) Saturday (d) Monday
6. 6.If 13 March is a Friday, what day of the week is 21 March? (a) Sunday (b) Friday (c) Monday (d) Saturday
7. 7.If 13 August is a Saturday, what day of the week is 28 August? (a) Tuesday (b) Sunday (c) Saturday (d) Monday
8. 8.If 4 August is a Thursday, what day of the week is 15 August? (a) Sunday (b) Monday (c) Tuesday (d) Wednesday
9. 9.If 27 April is a Sunday, what day of the week is 3 May? (a) Saturday (b) Sunday (c) Monday (d) Friday
10. 10.If 23 July is a Monday, what day of the week is 18 August? (a) Saturday (b) Friday (c) Sunday (d) Monday
11. 11.Today is Friday. What day of the week will it be after 52 days? (a) Monday (b) Sunday (c) Tuesday (d) Wednesday
12. 12.If 10 January is a Tuesday, what day of the week is 26 January? (a) Friday (b) Saturday (c) Thursday (d) Wednesday
13. 13.If 12 July is a Tuesday, what day of the week is 20 July? (a) Tuesday (b) Wednesday (c) Friday (d) Thursday
14. 14.If 11 March is a Sunday, what day of the week is 24 March? (a) Friday (b) Monday (c) Sunday (d) Saturday
15. 15.If 12 October is a Thursday, what day of the week is 9 November? (a) Wednesday (b) Thursday (c) Friday (d) Saturday
16. 16.Today is Sunday. What day of the week will it be after 80 days? (a) Wednesday (b) Thursday (c) Friday (d) Tuesday
17. 17.Today is Wednesday. What day of the week will it be after 65 days? (a) Sunday (b) Saturday (c) Thursday (d) Friday
18. 18.If 7 January is a Tuesday, what day of the week is 22 January? (a) Wednesday (b) Friday (c) Tuesday (d) Thursday
19. 19.If 25 September is a Tuesday, what day of the week is 11 October? (a) Saturday (b) Wednesday (c) Friday (d) Thursday
20. 20.If 11 September is a Wednesday, what day of the week is 15 October? (a) Wednesday (b) Monday (c) Tuesday (d) Thursday
21. 21.Today is Wednesday. What day of the week will it be after 57 days? (a) Wednesday (b) Saturday (c) Friday (d) Thursday
22. 22.Today is Tuesday. What day of the week will it be after 65 days? (a) Saturday (b) Thursday (c) Friday (d) Wednesday
23. 23.If 12 July is a Tuesday, what day of the week is 21 July? (a) Thursday (b) Saturday (c) Friday (d) Wednesday
24. 24.If 3 May is a Thursday, what day of the week is 12 May? (a) Friday (b) Monday (c) Saturday (d) Sunday
25. 25.Today is Sunday. What day of the week will it be after 11 days? (a) Thursday (b) Friday (c) Saturday (d) Wednesday
26. 26.If 20 April is a Monday, what day of the week is 12 May? (a) Wednesday (b) Monday (c) Thursday (d) Tuesday
27. 27.If 13 July is a Monday, what day of the week is 22 July? (a) Wednesday (b) Thursday (c) Friday (d) Tuesday
28. 28.Today is Monday. What day of the week will it be after 25 days? (a) Thursday (b) Friday (c) Sunday (d) Saturday
29. 29.Today is Monday. What day of the week will it be after 96 days? (a) Sunday (b) Saturday (c) Monday (d) Friday
30. 30.If 14 December is a Thursday, what day of the week is 28 December? (a) Friday (b) Wednesday (c) Saturday (d) Thursday
31. 31.If 10 August is a Tuesday, what day of the week is 24 August? (a) Thursday (b) Wednesday (c) Tuesday (d) Monday
32. 32.If 2 August is a Wednesday, what day of the week is 12 August? (a) Monday (b) Sunday (c) Saturday (d) Friday
33. 33.If 5 March is a Wednesday, what day of the week is 17 March? (a) Tuesday (b) Sunday (c) Wednesday (d) Monday
34. 34.If 8 October is a Friday, what day of the week is 22 October? (a) Saturday (b) Friday (c) Sunday (d) Thursday
35. 35.If 15 August is a Monday, what day of the week is 20 September? (a) Monday (b) Thursday (c) Wednesday (d) Tuesday
36. 36.If 1 May is a Friday, what day of the week is 14 May? (a) Saturday (b) Friday (c) Wednesday (d) Thursday
37. 37.Today is Saturday. What day of the week will it be after 57 days? (a) Tuesday (b) Saturday (c) Sunday (d) Monday
38. 38.If 14 January is a Saturday, what day of the week is 24 January? (a) Monday (b) Thursday (c) Wednesday (d) Tuesday
39. 39.If 8 July is a Wednesday, what day of the week is 23 July? (a) Saturday (b) Wednesday (c) Thursday (d) Friday
40. 40.If 1 December is a Friday, what day of the week is 15 December? (a) Thursday (b) Saturday (c) Friday (d) Sunday

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