Calendar Worksheet for Maths Olympiad

Maths Olympiad topic 12: Calendar puzzles · Set 507 · 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 1 January is a Friday, what day of the week is 15 January? (a) Thursday (b) Friday (c) Sunday (d) Saturday
2. 2.If 30 September is a Friday, what day of the week is 20 October? (a) Thursday (b) Wednesday (c) Friday (d) Saturday
3. 3.Today is Wednesday. What day of the week will it be after 15 days? (a) Saturday (b) Wednesday (c) Thursday (d) Friday
4. 4.If 11 January is a Thursday, what day of the week is 26 January? (a) Thursday (b) Saturday (c) Friday (d) Sunday
5. 5.If 5 August is a Tuesday, what day of the week is 14 August? (a) Saturday (b) Wednesday (c) Friday (d) Thursday
6. 6.If 3 May is a Sunday, what day of the week is 12 May? (a) Thursday (b) Tuesday (c) Wednesday (d) Monday
7. 7.If 30 January is a Sunday, what day of the week is 1 February? (a) Wednesday (b) Monday (c) Tuesday (d) Thursday
8. 8.Today is Sunday. What day of the week will it be after 46 days? (a) Saturday (b) Wednesday (c) Friday (d) Thursday
9. 9.Today is Friday. What day of the week will it be after 69 days? (a) Saturday (b) Friday (c) Wednesday (d) Thursday
10. 10.If 2 March is a Thursday, what day of the week is 17 March? (a) Saturday (b) Thursday (c) Sunday (d) Friday
11. 11.If 6 January is a Wednesday, what day of the week is 17 January? (a) Saturday (b) Tuesday (c) Sunday (d) Monday
12. 12.If 15 April is a Friday, what day of the week is 17 May? (a) Wednesday (b) Monday (c) Tuesday (d) Thursday
13. 13.If 14 August is a Thursday, what day of the week is 10 September? (a) Thursday (b) Friday (c) Wednesday (d) Tuesday
14. 14.Today is Wednesday. What day of the week will it be after 29 days? (a) Friday (b) Wednesday (c) Saturday (d) Thursday
15. 15.Today is Tuesday. What day of the week will it be after 80 days? (a) Thursday (b) Friday (c) Sunday (d) Saturday
16. 16.If 21 June is a Tuesday, what day of the week is 8 July? (a) Saturday (b) Sunday (c) Friday (d) Thursday
17. 17.If 29 September is a Monday, what day of the week is 14 October? (a) Monday (b) Thursday (c) Tuesday (d) Wednesday
18. 18.If 14 July is a Tuesday, what day of the week is 22 July? (a) Thursday (b) Tuesday (c) Wednesday (d) Friday
19. 19.Today is Tuesday. What day of the week will it be after 69 days? (a) Tuesday (b) Sunday (c) Monday (d) Wednesday
20. 20.Today is Tuesday. What day of the week will it be after 100 days? (a) Friday (b) Thursday (c) Saturday (d) Wednesday
21. 21.If 14 December is a Sunday, what day of the week is 26 December? (a) Friday (b) Thursday (c) Saturday (d) Sunday
22. 22.If 23 July is a Monday, what day of the week is 3 August? (a) Friday (b) Sunday (c) Saturday (d) Thursday
23. 23.If 5 July is a Saturday, what day of the week is 14 July? (a) Wednesday (b) Sunday (c) Monday (d) Tuesday
24. 24.If 14 December is a Wednesday, what day of the week is 24 December? (a) Friday (b) Sunday (c) Monday (d) Saturday
25. 25.If 1 March is a Tuesday, what day of the week is 12 March? (a) Sunday (b) Monday (c) Saturday (d) Friday
26. 26.If 14 December is a Wednesday, what day of the week is 23 December? (a) Saturday (b) Friday (c) Sunday (d) Thursday
27. 27.If 1 August is a Wednesday, what day of the week is 17 August? (a) Thursday (b) Friday (c) Sunday (d) Saturday
28. 28.If 9 August is a Wednesday, what day of the week is 21 August? (a) Wednesday (b) Monday (c) Tuesday (d) Sunday
29. 29.If 4 October is a Friday, what day of the week is 16 October? (a) Friday (b) Wednesday (c) Tuesday (d) Thursday
30. 30.If 23 September is a Monday, what day of the week is 6 October? (a) Saturday (b) Monday (c) Tuesday (d) Sunday
31. 31.If 27 May is a Saturday, what day of the week is 9 June? (a) Friday (b) Saturday (c) Thursday (d) Sunday
32. 32.If 11 January is a Friday, what day of the week is 25 January? (a) Sunday (b) Saturday (c) Thursday (d) Friday
33. 33.If 15 September is a Tuesday, what day of the week is 13 October? (a) Thursday (b) Tuesday (c) Wednesday (d) Monday
34. 34.If 5 May is a Sunday, what day of the week is 15 May? (a) Tuesday (b) Friday (c) Thursday (d) Wednesday
35. 35.If 9 May is a Tuesday, what day of the week is 22 May? (a) Monday (b) Sunday (c) Wednesday (d) Tuesday
36. 36.If 10 March is a Friday, what day of the week is 22 March? (a) Friday (b) Thursday (c) Tuesday (d) Wednesday
37. 37.If 11 May is a Thursday, what day of the week is 19 May? (a) Thursday (b) Saturday (c) Sunday (d) Friday
38. 38.If 11 November is a Thursday, what day of the week is 1 December? (a) Tuesday (b) Thursday (c) Wednesday (d) Friday
39. 39.Today is Thursday. What day of the week will it be after 67 days? (a) Tuesday (b) Wednesday (c) Sunday (d) Monday
40. 40.If 12 July is a Saturday, what day of the week is 23 July? (a) Wednesday (b) Thursday (c) Tuesday (d) Friday

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