Calendar Worksheet for Maths Olympiad

Maths Olympiad topic 12: Calendar puzzles · Set 17 · 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 23 September is a Sunday, what day of the week is 3 October? (a) Wednesday (b) Tuesday (c) Thursday (d) Friday
2. 2.If 12 May is a Sunday, what day of the week is 22 May? (a) Wednesday (b) Tuesday (c) Friday (d) Thursday
3. 3.If 10 May is a Friday, what day of the week is 20 May? (a) Tuesday (b) Monday (c) Wednesday (d) Sunday
4. 4.If 16 September is a Monday, what day of the week is 1 October? (a) Tuesday (b) Monday (c) Thursday (d) Wednesday
5. 5.If 4 July is a Saturday, what day of the week is 12 July? (a) Tuesday (b) Monday (c) Saturday (d) Sunday
6. 6.If 9 October is a Friday, what day of the week is 23 October? (a) Saturday (b) Friday (c) Thursday (d) Sunday
7. 7.If 4 October is a Tuesday, what day of the week is 20 October? (a) Saturday (b) Wednesday (c) Friday (d) Thursday
8. 8.If 8 May is a Sunday, what day of the week is 21 May? (a) Monday (b) Sunday (c) Saturday (d) Friday
9. 9.If 5 May is a Monday, what day of the week is 18 May? (a) Saturday (b) Sunday (c) Tuesday (d) Monday
10. 10.If 30 October is a Friday, what day of the week is 7 November? (a) Saturday (b) Sunday (c) Monday (d) Friday
11. 11.If 9 May is a Friday, what day of the week is 18 May? (a) Tuesday (b) Sunday (c) Saturday (d) Monday
12. 12.Today is Thursday. What day of the week will it be after 78 days? (a) Sunday (b) Thursday (c) Friday (d) Saturday
13. 13.Today is Friday. What day of the week will it be after 19 days? (a) Friday (b) Thursday (c) Wednesday (d) Tuesday
14. 14.If 18 July is a Tuesday, what day of the week is 20 August? (a) Monday (b) Tuesday (c) Saturday (d) Sunday
15. 15.Today is Wednesday. What day of the week will it be after 32 days? (a) Monday (b) Sunday (c) Tuesday (d) Saturday
16. 16.Today is Friday. What day of the week will it be after 63 days? (a) Saturday (b) Sunday (c) Friday (d) Thursday
17. 17.Today is Thursday. What day of the week will it be after 38 days? (a) Tuesday (b) Saturday (c) Sunday (d) Monday
18. 18.Today is Monday. What day of the week will it be after 85 days? (a) Tuesday (b) Wednesday (c) Monday (d) Thursday
19. 19.If 14 August is a Monday, what day of the week is 28 August? (a) Wednesday (b) Sunday (c) Monday (d) Tuesday
20. 20.If 6 December is a Wednesday, what day of the week is 22 December? (a) Thursday (b) Sunday (c) Saturday (d) Friday
21. 21.If 3 May is a Wednesday, what day of the week is 13 May? (a) Saturday (b) Sunday (c) Friday (d) Monday
22. 22.If 8 January is a Tuesday, what day of the week is 18 January? (a) Sunday (b) Friday (c) Saturday (d) Thursday
23. 23.Today is Sunday. What day of the week will it be after 62 days? (a) Sunday (b) Monday (c) Friday (d) Saturday
24. 24.If 22 August is a Monday, what day of the week is 5 September? (a) Monday (b) Tuesday (c) Wednesday (d) Sunday
25. 25.If 22 July is a Sunday, what day of the week is 7 August? (a) Monday (b) Thursday (c) Wednesday (d) Tuesday
26. 26.If 20 October is a Tuesday, what day of the week is 15 November? (a) Saturday (b) Monday (c) Sunday (d) Tuesday
27. 27.If 19 May is a Wednesday, what day of the week is 6 June? (a) Saturday (b) Monday (c) Tuesday (d) Sunday
28. 28.If 6 January is a Saturday, what day of the week is 20 January? (a) Sunday (b) Friday (c) Saturday (d) Monday
29. 29.Today is Tuesday. What day of the week will it be after 87 days? (a) Friday (b) Thursday (c) Saturday (d) Sunday
30. 30.If 28 April is a Friday, what day of the week is 11 May? (a) Saturday (b) Wednesday (c) Thursday (d) Friday
31. 31.Today is Thursday. What day of the week will it be after 75 days? (a) Wednesday (b) Monday (c) Tuesday (d) Thursday
32. 32.If 4 January is a Friday, what day of the week is 19 January? (a) Friday (b) Sunday (c) Monday (d) Saturday
33. 33.If 8 August is a Friday, what day of the week is 17 August? (a) Monday (b) Sunday (c) Saturday (d) Tuesday
34. 34.Today is Monday. What day of the week will it be after 25 days? (a) Thursday (b) Sunday (c) Saturday (d) Friday
35. 35.If 12 March is a Tuesday, what day of the week is 23 March? (a) Sunday (b) Monday (c) Saturday (d) Friday
36. 36.If 27 August is a Tuesday, what day of the week is 16 September? (a) Tuesday (b) Wednesday (c) Sunday (d) Monday
37. 37.If 1 January is a Wednesday, what day of the week is 14 January? (a) Thursday (b) Tuesday (c) Monday (d) Wednesday
38. 38.If 25 September is a Saturday, what day of the week is 19 October? (a) Thursday (b) Monday (c) Tuesday (d) Wednesday
39. 39.Today is Sunday. What day of the week will it be after 41 days? (a) Friday (b) Saturday (c) Monday (d) Sunday
40. 40.Today is Wednesday. What day of the week will it be after 12 days? (a) Wednesday (b) Tuesday (c) Sunday (d) Monday

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