Calendar Worksheet for Maths Olympiad

Maths Olympiad topic 12: Calendar puzzles · Set 35 · 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 13 August is a Wednesday, what day of the week is 29 August? (a) Sunday (b) Saturday (c) Thursday (d) Friday
2. 2.If 7 January is a Wednesday, what day of the week is 17 January? (a) Monday (b) Saturday (c) Friday (d) Sunday
3. 3.Today is Sunday. What day of the week will it be after 93 days? (a) Monday (b) Wednesday (c) Tuesday (d) Thursday
4. 4.If 15 April is a Thursday, what day of the week is 4 May? (a) Thursday (b) Monday (c) Tuesday (d) Wednesday
5. 5.If 2 July is a Saturday, what day of the week is 10 July? (a) Saturday (b) Monday (c) Sunday (d) Tuesday
6. 6.Today is Monday. What day of the week will it be after 92 days? (a) Wednesday (b) Thursday (c) Monday (d) Tuesday
7. 7.If 5 October is a Saturday, what day of the week is 18 October? (a) Thursday (b) Sunday (c) Saturday (d) Friday
8. 8.Today is Tuesday. What day of the week will it be after 36 days? (a) Tuesday (b) Thursday (c) Friday (d) Wednesday
9. 9.If 13 July is a Sunday, what day of the week is 29 July? (a) Thursday (b) Wednesday (c) Monday (d) Tuesday
10. 10.If 4 January is a Thursday, what day of the week is 19 January? (a) Sunday (b) Thursday (c) Friday (d) Saturday
11. 11.If 4 January is a Wednesday, what day of the week is 18 January? (a) Wednesday (b) Friday (c) Thursday (d) Tuesday
12. 12.Today is Tuesday. What day of the week will it be after 25 days? (a) Saturday (b) Monday (c) Friday (d) Sunday
13. 13.Today is Saturday. What day of the week will it be after 79 days? (a) Monday (b) Sunday (c) Wednesday (d) Tuesday
14. 14.Today is Monday. What day of the week will it be after 50 days? (a) Wednesday (b) Tuesday (c) Monday (d) Thursday
15. 15.Today is Thursday. What day of the week will it be after 50 days? (a) Thursday (b) Friday (c) Saturday (d) Sunday
16. 16.Today is Sunday. What day of the week will it be after 45 days? (a) Tuesday (b) Wednesday (c) Friday (d) Thursday
17. 17.If 13 January is a Wednesday, what day of the week is 24 January? (a) Monday (b) Sunday (c) Saturday (d) Tuesday
18. 18.If 21 January is a Wednesday, what day of the week is 15 February? (a) Tuesday (b) Saturday (c) Monday (d) Sunday
19. 19.If 8 December is a Tuesday, what day of the week is 17 December? (a) Saturday (b) Thursday (c) Friday (d) Wednesday
20. 20.If 29 November is a Thursday, what day of the week is 7 December? (a) Saturday (b) Sunday (c) Friday (d) Thursday
21. 21.If 16 June is a Wednesday, what day of the week is 10 July? (a) Monday (b) Sunday (c) Friday (d) Saturday
22. 22.If 27 November is a Saturday, what day of the week is 20 December? (a) Monday (b) Wednesday (c) Sunday (d) Tuesday
23. 23.If 8 July is a Saturday, what day of the week is 22 July? (a) Friday (b) Sunday (c) Saturday (d) Monday
24. 24.If 20 October is a Monday, what day of the week is 15 November? (a) Friday (b) Monday (c) Sunday (d) Saturday
25. 25.If 11 March is a Sunday, what day of the week is 24 March? (a) Sunday (b) Monday (c) Saturday (d) Friday
26. 26.If 16 April is a Monday, what day of the week is 17 May? (a) Thursday (b) Wednesday (c) Friday (d) Saturday
27. 27.If 23 May is a Sunday, what day of the week is 15 June? (a) Wednesday (b) Monday (c) Thursday (d) Tuesday
28. 28.If 9 May is a Tuesday, what day of the week is 18 May? (a) Thursday (b) Wednesday (c) Saturday (d) Friday
29. 29.If 10 January is a Tuesday, what day of the week is 21 January? (a) Monday (b) Saturday (c) Friday (d) Sunday
30. 30.Today is Friday. What day of the week will it be after 99 days? (a) Saturday (b) Sunday (c) Monday (d) Friday
31. 31.Today is Saturday. What day of the week will it be after 100 days? (a) Tuesday (b) Wednesday (c) Sunday (d) Monday
32. 32.If 2 March is a Wednesday, what day of the week is 13 March? (a) Monday (b) Tuesday (c) Sunday (d) Saturday
33. 33.If 30 March is a Friday, what day of the week is 11 April? (a) Tuesday (b) Friday (c) Wednesday (d) Thursday
34. 34.Today is Tuesday. What day of the week will it be after 49 days? (a) Tuesday (b) Thursday (c) Wednesday (d) Monday
35. 35.If 13 December is a Tuesday, what day of the week is 21 December? (a) Friday (b) Thursday (c) Wednesday (d) Tuesday
36. 36.Today is Thursday. What day of the week will it be after 54 days? (a) Tuesday (b) Monday (c) Thursday (d) Wednesday
37. 37.If 15 October is a Tuesday, what day of the week is 5 November? (a) Monday (b) Wednesday (c) Thursday (d) Tuesday
38. 38.If 14 January is a Thursday, what day of the week is 11 February? (a) Saturday (b) Wednesday (c) Thursday (d) Friday
39. 39.If 23 April is a Thursday, what day of the week is 16 May? (a) Saturday (b) Sunday (c) Friday (d) Monday
40. 40.If 5 August is a Thursday, what day of the week is 20 August? (a) Friday (b) Sunday (c) Saturday (d) Thursday

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