Calendar Worksheet for Maths Olympiad

Maths Olympiad topic 12: Calendar puzzles · Set 44 · 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 6 October is a Tuesday, what day of the week is 20 October? (a) Monday (b) Tuesday (c) Thursday (d) Wednesday
2. 2.If 2 July is a Tuesday, what day of the week is 10 July? (a) Tuesday (b) Thursday (c) Friday (d) Wednesday
3. 3.If 2 July is a Wednesday, what day of the week is 18 July? (a) Thursday (b) Saturday (c) Friday (d) Sunday
4. 4.If 31 March is a Tuesday, what day of the week is 20 April? (a) Sunday (b) Wednesday (c) Tuesday (d) Monday
5. 5.If 13 March is a Friday, what day of the week is 23 March? (a) Sunday (b) Wednesday (c) Tuesday (d) Monday
6. 6.Today is Wednesday. What day of the week will it be after 48 days? (a) Tuesday (b) Monday (c) Thursday (d) Wednesday
7. 7.If 29 October is a Thursday, what day of the week is 9 November? (a) Monday (b) Tuesday (c) Wednesday (d) Sunday
8. 8.If 9 March is a Tuesday, what day of the week is 25 March? (a) Wednesday (b) Thursday (c) Friday (d) Saturday
9. 9.If 12 July is a Wednesday, what day of the week is 21 July? (a) Saturday (b) Friday (c) Thursday (d) Sunday
10. 10.If 23 July is a Saturday, what day of the week is 14 August? (a) Sunday (b) Monday (c) Saturday (d) Tuesday
11. 11.If 1 March is a Sunday, what day of the week is 10 March? (a) Thursday (b) Monday (c) Tuesday (d) Wednesday
12. 12.If 6 December is a Monday, what day of the week is 14 December? (a) Wednesday (b) Monday (c) Thursday (d) Tuesday
13. 13.If 2 December is a Friday, what day of the week is 15 December? (a) Thursday (b) Wednesday (c) Friday (d) Saturday
14. 14.Today is Saturday. What day of the week will it be after 94 days? (a) Monday (b) Tuesday (c) Wednesday (d) Thursday
15. 15.If 3 March is a Saturday, what day of the week is 15 March? (a) Saturday (b) Friday (c) Wednesday (d) Thursday
16. 16.If 15 April is a Tuesday, what day of the week is 3 May? (a) Monday (b) Saturday (c) Friday (d) Sunday
17. 17.If 2 January is a Thursday, what day of the week is 17 January? (a) Friday (b) Saturday (c) Thursday (d) Sunday
18. 18.If 7 October is a Monday, what day of the week is 23 October? (a) Wednesday (b) Friday (c) Tuesday (d) Thursday
19. 19.If 5 January is a Thursday, what day of the week is 17 January? (a) Monday (b) Thursday (c) Wednesday (d) Tuesday
20. 20.Today is Tuesday. What day of the week will it be after 78 days? (a) Thursday (b) Friday (c) Wednesday (d) Tuesday
21. 21.If 6 March is a Monday, what day of the week is 17 March? (a) Thursday (b) Sunday (c) Saturday (d) Friday
22. 22.Today is Wednesday. What day of the week will it be after 36 days? (a) Wednesday (b) Thursday (c) Friday (d) Saturday
23. 23.If 16 August is a Wednesday, what day of the week is 12 September? (a) Thursday (b) Tuesday (c) Monday (d) Wednesday
24. 24.Today is Saturday. What day of the week will it be after 52 days? (a) Wednesday (b) Monday (c) Thursday (d) Tuesday
25. 25.If 3 March is a Wednesday, what day of the week is 14 March? (a) Saturday (b) Sunday (c) Monday (d) Tuesday
26. 26.Today is Monday. What day of the week will it be after 22 days? (a) Tuesday (b) Monday (c) Wednesday (d) Thursday
27. 27.If 3 December is a Wednesday, what day of the week is 17 December? (a) Friday (b) Thursday (c) Tuesday (d) Wednesday
28. 28.If 20 January is a Wednesday, what day of the week is 8 February? (a) Sunday (b) Tuesday (c) Monday (d) Wednesday
29. 29.If 23 March is a Friday, what day of the week is 15 April? (a) Saturday (b) Sunday (c) Monday (d) Tuesday
30. 30.Today is Monday. What day of the week will it be after 21 days? (a) Monday (b) Tuesday (c) Wednesday (d) Sunday
31. 31.If 28 August is a Saturday, what day of the week is 14 September? (a) Thursday (b) Wednesday (c) Monday (d) Tuesday
32. 32.If 10 May is a Saturday, what day of the week is 18 May? (a) Tuesday (b) Sunday (c) Monday (d) Saturday
33. 33.If 2 December is a Thursday, what day of the week is 16 December? (a) Saturday (b) Wednesday (c) Friday (d) Thursday
34. 34.If 4 May is a Monday, what day of the week is 14 May? (a) Friday (b) Wednesday (c) Thursday (d) Saturday
35. 35.If 4 May is a Friday, what day of the week is 16 May? (a) Wednesday (b) Thursday (c) Tuesday (d) Friday
36. 36.If 7 July is a Monday, what day of the week is 18 July? (a) Friday (b) Sunday (c) Saturday (d) Thursday
37. 37.Today is Monday. What day of the week will it be after 50 days? (a) Monday (b) Wednesday (c) Thursday (d) Tuesday
38. 38.If 6 December is a Friday, what day of the week is 18 December? (a) Thursday (b) Friday (c) Wednesday (d) Tuesday
39. 39.If 11 September is a Monday, what day of the week is 7 October? (a) Sunday (b) Saturday (c) Monday (d) Friday
40. 40.Today is Sunday. What day of the week will it be after 47 days? (a) Thursday (b) Sunday (c) Saturday (d) Friday

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