Calendar Worksheet for Maths Olympiad

Maths Olympiad topic 12: Calendar puzzles · Set 617 · 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 Sunday. What day of the week will it be after 79 days? (a) Wednesday (b) Thursday (c) Tuesday (d) Monday
2. 2.If 20 September is a Friday, what day of the week is 17 October? (a) Saturday (b) Wednesday (c) Friday (d) Thursday
3. 3.If 11 January is a Wednesday, what day of the week is 19 January? (a) Saturday (b) Thursday (c) Friday (d) Wednesday
4. 4.Today is Sunday. What day of the week will it be after 59 days? (a) Tuesday (b) Thursday (c) Wednesday (d) Friday
5. 5.If 5 July is a Monday, what day of the week is 21 July? (a) Wednesday (b) Friday (c) Tuesday (d) Thursday
6. 6.Today is Tuesday. What day of the week will it be after 74 days? (a) Monday (b) Sunday (c) Friday (d) Saturday
7. 7.Today is Wednesday. What day of the week will it be after 57 days? (a) Thursday (b) Wednesday (c) Saturday (d) Friday
8. 8.Today is Monday. What day of the week will it be after 51 days? (a) Tuesday (b) Thursday (c) Friday (d) Wednesday
9. 9.Today is Tuesday. What day of the week will it be after 47 days? (a) Sunday (b) Monday (c) Tuesday (d) Saturday
10. 10.If 13 November is a Saturday, what day of the week is 4 December? (a) Friday (b) Monday (c) Saturday (d) Sunday
11. 11.If 11 October is a Tuesday, what day of the week is 24 October? (a) Monday (b) Tuesday (c) Wednesday (d) Sunday
12. 12.If 20 January is a Monday, what day of the week is 11 February? (a) Wednesday (b) Monday (c) Thursday (d) Tuesday
13. 13.If 13 January is a Thursday, what day of the week is 23 January? (a) Sunday (b) Monday (c) Saturday (d) Tuesday
14. 14.If 1 August is a Saturday, what day of the week is 16 August? (a) Sunday (b) Saturday (c) Tuesday (d) Monday
15. 15.If 14 January is a Thursday, what day of the week is 28 January? (a) Wednesday (b) Thursday (c) Saturday (d) Friday
16. 16.If 12 December is a Saturday, what day of the week is 24 December? (a) Friday (b) Thursday (c) Wednesday (d) Saturday
17. 17.If 13 March is a Thursday, what day of the week is 24 March? (a) Tuesday (b) Sunday (c) Wednesday (d) Monday
18. 18.If 27 September is a Sunday, what day of the week is 18 October? (a) Saturday (b) Sunday (c) Tuesday (d) Monday
19. 19.If 12 October is a Tuesday, what day of the week is 22 October? (a) Friday (b) Saturday (c) Thursday (d) Sunday
20. 20.If 5 July is a Wednesday, what day of the week is 20 July? (a) Thursday (b) Friday (c) Saturday (d) Wednesday
21. 21.Today is Wednesday. What day of the week will it be after 64 days? (a) Wednesday (b) Saturday (c) Thursday (d) Friday
22. 22.If 14 July is a Monday, what day of the week is 1 August? (a) Thursday (b) Saturday (c) Sunday (d) Friday
23. 23.If 21 May is a Thursday, what day of the week is 12 June? (a) Thursday (b) Saturday (c) Friday (d) Sunday
24. 24.Today is Sunday. What day of the week will it be after 12 days? (a) Friday (b) Sunday (c) Saturday (d) Thursday
25. 25.Today is Sunday. What day of the week will it be after 17 days? (a) Wednesday (b) Friday (c) Tuesday (d) Thursday
26. 26.If 28 November is a Thursday, what day of the week is 9 December? (a) Monday (b) Wednesday (c) Sunday (d) Tuesday
27. 27.If 4 July is a Friday, what day of the week is 12 July? (a) Monday (b) Sunday (c) Saturday (d) Friday
28. 28.If 4 March is a Sunday, what day of the week is 19 March? (a) Monday (b) Wednesday (c) Tuesday (d) Sunday
29. 29.If 11 April is a Tuesday, what day of the week is 6 May? (a) Sunday (b) Saturday (c) Monday (d) Friday
30. 30.Today is Thursday. What day of the week will it be after 79 days? (a) Sunday (b) Saturday (c) Monday (d) Friday
31. 31.If 5 July is a Wednesday, what day of the week is 21 July? (a) Friday (b) Thursday (c) Saturday (d) Sunday
32. 32.If 9 August is a Friday, what day of the week is 24 August? (a) Friday (b) Saturday (c) Monday (d) Sunday
33. 33.If 10 March is a Monday, what day of the week is 11 April? (a) Friday (b) Saturday (c) Thursday (d) Sunday
34. 34.Today is Tuesday. What day of the week will it be after 55 days? (a) Monday (b) Sunday (c) Tuesday (d) Wednesday
35. 35.Today is Tuesday. What day of the week will it be after 23 days? (a) Friday (b) Wednesday (c) Thursday (d) Saturday
36. 36.Today is Saturday. What day of the week will it be after 16 days? (a) Sunday (b) Tuesday (c) Monday (d) Wednesday
37. 37.Today is Saturday. What day of the week will it be after 74 days? (a) Tuesday (b) Friday (c) Wednesday (d) Thursday
38. 38.If 10 July is a Monday, what day of the week is 18 July? (a) Tuesday (b) Monday (c) Wednesday (d) Thursday
39. 39.If 28 July is a Monday, what day of the week is 4 August? (a) Sunday (b) Tuesday (c) Monday (d) Wednesday
40. 40.Today is Friday. What day of the week will it be after 77 days? (a) Sunday (b) Saturday (c) Friday (d) Thursday

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