Calendar Worksheet for Maths Olympiad

Maths Olympiad topic 12: Calendar puzzles · Set 24 · 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 12 July is a Thursday, what day of the week is 15 August? (a) Wednesday (b) Friday (c) Thursday (d) Tuesday
2. 2.Today is Thursday. What day of the week will it be after 97 days? (a) Thursday (b) Friday (c) Wednesday (d) Tuesday
3. 3.Today is Wednesday. What day of the week will it be after 99 days? (a) Saturday (b) Friday (c) Wednesday (d) Thursday
4. 4.Today is Tuesday. What day of the week will it be after 21 days? (a) Wednesday (b) Monday (c) Thursday (d) Tuesday
5. 5.If 10 October is a Monday, what day of the week is 3 November? (a) Wednesday (b) Thursday (c) Saturday (d) Friday
6. 6.If 31 July is a Tuesday, what day of the week is 7 August? (a) Thursday (b) Wednesday (c) Monday (d) Tuesday
7. 7.If 15 January is a Saturday, what day of the week is 28 January? (a) Saturday (b) Sunday (c) Friday (d) Thursday
8. 8.If 15 December is a Sunday, what day of the week is 24 December? (a) Tuesday (b) Thursday (c) Wednesday (d) Monday
9. 9.If 16 March is a Wednesday, what day of the week is 9 April? (a) Sunday (b) Friday (c) Monday (d) Saturday
10. 10.If 23 January is a Wednesday, what day of the week is 18 February? (a) Wednesday (b) Monday (c) Sunday (d) Tuesday
11. 11.If 11 July is a Wednesday, what day of the week is 19 July? (a) Wednesday (b) Thursday (c) Saturday (d) Friday
12. 12.If 22 August is a Saturday, what day of the week is 5 September? (a) Sunday (b) Friday (c) Monday (d) Saturday
13. 13.If 4 July is a Tuesday, what day of the week is 13 July? (a) Friday (b) Saturday (c) Wednesday (d) Thursday
14. 14.If 12 May is a Wednesday, what day of the week is 26 May? (a) Thursday (b) Tuesday (c) Friday (d) Wednesday
15. 15.If 16 November is a Sunday, what day of the week is 16 December? (a) Monday (b) Tuesday (c) Thursday (d) Wednesday
16. 16.Today is Thursday. What day of the week will it be after 78 days? (a) Saturday (b) Thursday (c) Sunday (d) Friday
17. 17.Today is Tuesday. What day of the week will it be after 17 days? (a) Sunday (b) Saturday (c) Friday (d) Thursday
18. 18.If 20 October is a Saturday, what day of the week is 12 November? (a) Tuesday (b) Wednesday (c) Monday (d) Sunday
19. 19.If 5 March is a Thursday, what day of the week is 14 March? (a) Monday (b) Sunday (c) Saturday (d) Friday
20. 20.If 8 March is a Saturday, what day of the week is 21 March? (a) Sunday (b) Saturday (c) Thursday (d) Friday
21. 21.If 14 December is a Thursday, what day of the week is 29 December? (a) Thursday (b) Sunday (c) Friday (d) Saturday
22. 22.If 7 August is a Sunday, what day of the week is 22 August? (a) Monday (b) Wednesday (c) Tuesday (d) Sunday
23. 23.If 8 May is a Thursday, what day of the week is 24 May? (a) Monday (b) Friday (c) Sunday (d) Saturday
24. 24.If 8 July is a Sunday, what day of the week is 17 July? (a) Tuesday (b) Monday (c) Thursday (d) Wednesday
25. 25.If 21 October is a Monday, what day of the week is 13 November? (a) Friday (b) Tuesday (c) Wednesday (d) Thursday
26. 26.Today is Saturday. What day of the week will it be after 14 days? (a) Saturday (b) Friday (c) Monday (d) Sunday
27. 27.Today is Monday. What day of the week will it be after 88 days? (a) Sunday (b) Saturday (c) Thursday (d) Friday
28. 28.Today is Tuesday. What day of the week will it be after 81 days? (a) Monday (b) Friday (c) Saturday (d) Sunday
29. 29.Today is Saturday. What day of the week will it be after 15 days? (a) Tuesday (b) Sunday (c) Monday (d) Saturday
30. 30.If 4 October is a Tuesday, what day of the week is 15 October? (a) Friday (b) Sunday (c) Monday (d) Saturday
31. 31.If 14 March is a Wednesday, what day of the week is 26 March? (a) Tuesday (b) Sunday (c) Monday (d) Wednesday
32. 32.If 20 September is a Saturday, what day of the week is 17 October? (a) Thursday (b) Friday (c) Saturday (d) Sunday
33. 33.If 15 April is a Wednesday, what day of the week is 19 May? (a) Monday (b) Thursday (c) Wednesday (d) Tuesday
34. 34.If 10 December is a Tuesday, what day of the week is 18 December? (a) Wednesday (b) Thursday (c) Friday (d) Tuesday
35. 35.If 3 July is a Monday, what day of the week is 12 July? (a) Wednesday (b) Thursday (c) Friday (d) Tuesday
36. 36.If 25 March is a Wednesday, what day of the week is 11 April? (a) Friday (b) Monday (c) Sunday (d) Saturday
37. 37.If 12 October is a Sunday, what day of the week is 20 October? (a) Tuesday (b) Wednesday (c) Sunday (d) Monday
38. 38.If 28 January is a Friday, what day of the week is 5 February? (a) Monday (b) Friday (c) Saturday (d) Sunday
39. 39.Today is Monday. What day of the week will it be after 32 days? (a) Friday (b) Thursday (c) Sunday (d) Saturday
40. 40.If 7 July is a Wednesday, what day of the week is 20 July? (a) Tuesday (b) Monday (c) Thursday (d) Wednesday

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