Calendar Worksheet for Maths Olympiad

Maths Olympiad topic 12: Calendar puzzles · Set 37 · 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 January is a Sunday, what day of the week is 21 January? (a) Wednesday (b) Tuesday (c) Monday (d) Sunday
2. 2.Today is Thursday. What day of the week will it be after 40 days? (a) Thursday (b) Tuesday (c) Wednesday (d) Monday
3. 3.If 20 October is a Tuesday, what day of the week is 15 November? (a) Tuesday (b) Sunday (c) Monday (d) Saturday
4. 4.Today is Thursday. What day of the week will it be after 22 days? (a) Thursday (b) Saturday (c) Friday (d) Sunday
5. 5.If 1 January is a Sunday, what day of the week is 12 January? (a) Wednesday (b) Saturday (c) Thursday (d) Friday
6. 6.If 4 May is a Sunday, what day of the week is 18 May? (a) Saturday (b) Monday (c) Tuesday (d) Sunday
7. 7.If 14 September is a Thursday, what day of the week is 13 October? (a) Sunday (b) Saturday (c) Friday (d) Thursday
8. 8.Today is Friday. What day of the week will it be after 33 days? (a) Tuesday (b) Friday (c) Thursday (d) Wednesday
9. 9.If 15 November is a Friday, what day of the week is 10 December? (a) Monday (b) Tuesday (c) Thursday (d) Wednesday
10. 10.If 15 August is a Friday, what day of the week is 23 August? (a) Monday (b) Sunday (c) Saturday (d) Friday
11. 11.If 26 July is a Thursday, what day of the week is 19 August? (a) Monday (b) Saturday (c) Tuesday (d) Sunday
12. 12.If 15 July is a Saturday, what day of the week is 8 August? (a) Tuesday (b) Thursday (c) Wednesday (d) Monday
13. 13.If 11 January is a Saturday, what day of the week is 11 February? (a) Tuesday (b) Wednesday (c) Thursday (d) Monday
14. 14.If 15 August is a Friday, what day of the week is 8 September? (a) Monday (b) Wednesday (c) Sunday (d) Tuesday
15. 15.Today is Wednesday. What day of the week will it be after 100 days? (a) Thursday (b) Friday (c) Saturday (d) Sunday
16. 16.If 1 August is a Monday, what day of the week is 15 August? (a) Tuesday (b) Sunday (c) Wednesday (d) Monday
17. 17.If 12 October is a Monday, what day of the week is 20 October? (a) Thursday (b) Monday (c) Tuesday (d) Wednesday
18. 18.If 28 August is a Wednesday, what day of the week is 20 September? (a) Friday (b) Sunday (c) Thursday (d) Saturday
19. 19.If 19 June is a Wednesday, what day of the week is 6 July? (a) Friday (b) Sunday (c) Monday (d) Saturday
20. 20.Today is Friday. What day of the week will it be after 29 days? (a) Friday (b) Sunday (c) Monday (d) Saturday
21. 21.If 11 March is a Tuesday, what day of the week is 25 March? (a) Wednesday (b) Thursday (c) Tuesday (d) Monday
22. 22.If 11 July is a Wednesday, what day of the week is 25 July? (a) Tuesday (b) Thursday (c) Friday (d) Wednesday
23. 23.If 10 May is a Tuesday, what day of the week is 21 May? (a) Saturday (b) Sunday (c) Monday (d) Friday
24. 24.Today is Wednesday. What day of the week will it be after 11 days? (a) Tuesday (b) Saturday (c) Monday (d) Sunday
25. 25.If 16 November is a Thursday, what day of the week is 6 December? (a) Thursday (b) Friday (c) Tuesday (d) Wednesday
26. 26.If 9 July is a Thursday, what day of the week is 21 July? (a) Monday (b) Thursday (c) Wednesday (d) Tuesday
27. 27.Today is Wednesday. What day of the week will it be after 12 days? (a) Tuesday (b) Wednesday (c) Monday (d) Sunday
28. 28.If 16 March is a Monday, what day of the week is 12 April? (a) Tuesday (b) Monday (c) Sunday (d) Saturday
29. 29.If 14 May is a Tuesday, what day of the week is 24 May? (a) Friday (b) Saturday (c) Thursday (d) Sunday
30. 30.If 3 October is a Monday, what day of the week is 16 October? (a) Monday (b) Sunday (c) Saturday (d) Tuesday
31. 31.If 15 March is a Wednesday, what day of the week is 29 March? (a) Wednesday (b) Thursday (c) Friday (d) Tuesday
32. 32.If 12 March is a Thursday, what day of the week is 15 April? (a) Wednesday (b) Tuesday (c) Friday (d) Thursday
33. 33.If 4 March is a Saturday, what day of the week is 14 March? (a) Tuesday (b) Thursday (c) Monday (d) Wednesday
34. 34.If 11 October is a Wednesday, what day of the week is 26 October? (a) Thursday (b) Wednesday (c) Saturday (d) Friday
35. 35.Today is Thursday. What day of the week will it be after 47 days? (a) Tuesday (b) Thursday (c) Wednesday (d) Monday
36. 36.If 10 April is a Thursday, what day of the week is 9 May? (a) Friday (b) Saturday (c) Sunday (d) Thursday
37. 37.Today is Saturday. What day of the week will it be after 69 days? (a) Sunday (b) Thursday (c) Saturday (d) Friday
38. 38.If 11 August is a Wednesday, what day of the week is 20 August? (a) Friday (b) Saturday (c) Thursday (d) Sunday
39. 39.Today is Monday. What day of the week will it be after 22 days? (a) Monday (b) Thursday (c) Tuesday (d) Wednesday
40. 40.If 16 April is a Monday, what day of the week is 19 May? (a) Friday (b) Sunday (c) Saturday (d) Monday

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