Calendar Worksheet for Maths Olympiad

Maths Olympiad topic 12: Calendar puzzles · Set 447 · 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.Today is Wednesday. What day of the week will it be after 81 days? (a) Saturday (b) Monday (c) Sunday (d) Tuesday
2. 2.If 6 March is a Saturday, what day of the week is 21 March? (a) Sunday (b) Monday (c) Tuesday (d) Saturday
3. 3.If 29 October is a Monday, what day of the week is 4 November? (a) Monday (b) Saturday (c) Tuesday (d) Sunday
4. 4.If 28 June is a Sunday, what day of the week is 13 July? (a) Tuesday (b) Wednesday (c) Monday (d) Sunday
5. 5.If 4 December is a Tuesday, what day of the week is 15 December? (a) Saturday (b) Friday (c) Monday (d) Sunday
6. 6.Today is Saturday. What day of the week will it be after 80 days? (a) Wednesday (b) Thursday (c) Tuesday (d) Monday
7. 7.If 10 December is a Saturday, what day of the week is 19 December? (a) Sunday (b) Wednesday (c) Monday (d) Tuesday
8. 8.If 18 April is a Sunday, what day of the week is 16 May? (a) Tuesday (b) Monday (c) Saturday (d) Sunday
9. 9.If 20 November is a Tuesday, what day of the week is 18 December? (a) Wednesday (b) Monday (c) Thursday (d) Tuesday
10. 10.If 12 September is a Saturday, what day of the week is 14 October? (a) Tuesday (b) Friday (c) Wednesday (d) Thursday
11. 11.Today is Sunday. What day of the week will it be after 21 days? (a) Saturday (b) Monday (c) Sunday (d) Tuesday
12. 12.If 26 April is a Wednesday, what day of the week is 19 May? (a) Thursday (b) Saturday (c) Sunday (d) Friday
13. 13.If 15 October is a Monday, what day of the week is 25 October? (a) Saturday (b) Wednesday (c) Thursday (d) Friday
14. 14.If 1 October is a Thursday, what day of the week is 15 October? (a) Thursday (b) Wednesday (c) Friday (d) Saturday
15. 15.If 22 January is a Wednesday, what day of the week is 17 February? (a) Wednesday (b) Tuesday (c) Sunday (d) Monday
16. 16.If 24 January is a Friday, what day of the week is 1 February? (a) Sunday (b) Friday (c) Monday (d) Saturday
17. 17.If 2 December is a Thursday, what day of the week is 14 December? (a) Monday (b) Tuesday (c) Thursday (d) Wednesday
18. 18.If 10 March is a Tuesday, what day of the week is 25 March? (a) Thursday (b) Friday (c) Tuesday (d) Wednesday
19. 19.If 10 August is a Saturday, what day of the week is 24 August? (a) Friday (b) Monday (c) Sunday (d) Saturday
20. 20.If 2 March is a Tuesday, what day of the week is 16 March? (a) Tuesday (b) Wednesday (c) Thursday (d) Monday
21. 21.Today is Monday. What day of the week will it be after 86 days? (a) Wednesday (b) Friday (c) Tuesday (d) Thursday
22. 22.If 25 January is a Thursday, what day of the week is 3 February? (a) Saturday (b) Sunday (c) Friday (d) Monday
23. 23.Today is Monday. What day of the week will it be after 77 days? (a) Wednesday (b) Tuesday (c) Monday (d) Sunday
24. 24.If 6 October is a Tuesday, what day of the week is 18 October? (a) Monday (b) Saturday (c) Tuesday (d) Sunday
25. 25.If 21 January is a Monday, what day of the week is 19 February? (a) Monday (b) Thursday (c) Tuesday (d) Wednesday
26. 26.Today is Wednesday. What day of the week will it be after 99 days? (a) Saturday (b) Thursday (c) Friday (d) Wednesday
27. 27.If 8 May is a Sunday, what day of the week is 22 May? (a) Saturday (b) Tuesday (c) Sunday (d) Monday
28. 28.If 5 August is a Saturday, what day of the week is 15 August? (a) Tuesday (b) Monday (c) Wednesday (d) Thursday
29. 29.Today is Saturday. What day of the week will it be after 69 days? (a) Saturday (b) Sunday (c) Thursday (d) Friday
30. 30.If 17 October is a Tuesday, what day of the week is 11 November? (a) Saturday (b) Friday (c) Sunday (d) Monday
31. 31.If 5 August is a Tuesday, what day of the week is 14 August? (a) Saturday (b) Wednesday (c) Friday (d) Thursday
32. 32.Today is Tuesday. What day of the week will it be after 71 days? (a) Thursday (b) Friday (c) Wednesday (d) Tuesday
33. 33.If 1 August is a Monday, what day of the week is 14 August? (a) Saturday (b) Monday (c) Sunday (d) Tuesday
34. 34.If 10 July is a Friday, what day of the week is 23 July? (a) Saturday (b) Wednesday (c) Friday (d) Thursday
35. 35.If 14 July is a Sunday, what day of the week is 26 July? (a) Saturday (b) Thursday (c) Friday (d) Sunday
36. 36.Today is Wednesday. What day of the week will it be after 19 days? (a) Tuesday (b) Sunday (c) Wednesday (d) Monday
37. 37.If 31 March is a Tuesday, what day of the week is 3 April? (a) Thursday (b) Saturday (c) Friday (d) Sunday
38. 38.If 12 January is a Monday, what day of the week is 16 February? (a) Monday (b) Wednesday (c) Tuesday (d) Sunday
39. 39.If 5 July is a Thursday, what day of the week is 18 July? (a) Tuesday (b) Thursday (c) Friday (d) Wednesday
40. 40.If 12 June is a Monday, what day of the week is 18 July? (a) Wednesday (b) Thursday (c) Tuesday (d) Monday

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