Calendar Worksheet for Maths Olympiad

Maths Olympiad topic 12: Calendar puzzles · Set 681 · 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 30 January is a Thursday, what day of the week is 9 February? (a) Saturday (b) Monday (c) Tuesday (d) Sunday
2. 2.If 15 October is a Wednesday, what day of the week is 25 October? (a) Sunday (b) Friday (c) Monday (d) Saturday
3. 3.Today is Thursday. What day of the week will it be after 64 days? (a) Saturday (b) Thursday (c) Sunday (d) Friday
4. 4.If 10 August is a Sunday, what day of the week is 23 August? (a) Friday (b) Saturday (c) Sunday (d) Monday
5. 5.If 11 January is a Thursday, what day of the week is 27 January? (a) Saturday (b) Friday (c) Sunday (d) Monday
6. 6.If 3 July is a Friday, what day of the week is 11 July? (a) Sunday (b) Friday (c) Monday (d) Saturday
7. 7.If 6 July is a Tuesday, what day of the week is 17 July? (a) Monday (b) Sunday (c) Friday (d) Saturday
8. 8.If 26 May is a Monday, what day of the week is 18 June? (a) Wednesday (b) Thursday (c) Friday (d) Tuesday
9. 9.If 20 October is a Monday, what day of the week is 17 November? (a) Monday (b) Tuesday (c) Wednesday (d) Sunday
10. 10.Today is Saturday. What day of the week will it be after 91 days? (a) Monday (b) Saturday (c) Friday (d) Sunday
11. 11.If 25 January is a Tuesday, what day of the week is 4 February? (a) Saturday (b) Friday (c) Thursday (d) Sunday
12. 12.Today is Monday. What day of the week will it be after 80 days? (a) Thursday (b) Friday (c) Wednesday (d) Saturday
13. 13.If 14 March is a Thursday, what day of the week is 23 March? (a) Sunday (b) Monday (c) Saturday (d) Friday
14. 14.If 25 June is a Thursday, what day of the week is 9 July? (a) Saturday (b) Wednesday (c) Friday (d) Thursday
15. 15.Today is Tuesday. What day of the week will it be after 56 days? (a) Monday (b) Tuesday (c) Thursday (d) Wednesday
16. 16.If 5 March is a Monday, what day of the week is 13 March? (a) Thursday (b) Monday (c) Wednesday (d) Tuesday
17. 17.If 20 November is a Monday, what day of the week is 10 December? (a) Monday (b) Tuesday (c) Sunday (d) Saturday
18. 18.If 28 July is a Friday, what day of the week is 8 August? (a) Tuesday (b) Wednesday (c) Monday (d) Thursday
19. 19.If 3 May is a Saturday, what day of the week is 13 May? (a) Thursday (b) Tuesday (c) Wednesday (d) Monday
20. 20.If 25 June is a Monday, what day of the week is 10 July? (a) Wednesday (b) Monday (c) Thursday (d) Tuesday
21. 21.Today is Wednesday. What day of the week will it be after 47 days? (a) Monday (b) Tuesday (c) Sunday (d) Wednesday
22. 22.Today is Saturday. What day of the week will it be after 70 days? (a) Friday (b) Monday (c) Saturday (d) Sunday
23. 23.Today is Thursday. What day of the week will it be after 100 days? (a) Sunday (b) Friday (c) Saturday (d) Monday
24. 24.Today is Sunday. What day of the week will it be after 46 days? (a) Friday (b) Saturday (c) Thursday (d) Wednesday
25. 25.If 13 August is a Friday, what day of the week is 14 September? (a) Thursday (b) Monday (c) Tuesday (d) Wednesday
26. 26.If 4 July is a Friday, what day of the week is 18 July? (a) Friday (b) Sunday (c) Saturday (d) Thursday
27. 27.If 10 January is a Thursday, what day of the week is 14 February? (a) Saturday (b) Thursday (c) Friday (d) Wednesday
28. 28.If 4 December is a Monday, what day of the week is 20 December? (a) Friday (b) Thursday (c) Wednesday (d) Tuesday
29. 29.If 15 December is a Wednesday, what day of the week is 27 December? (a) Tuesday (b) Monday (c) Sunday (d) Wednesday
30. 30.If 15 August is a Tuesday, what day of the week is 31 August? (a) Saturday (b) Wednesday (c) Friday (d) Thursday
31. 31.Today is Saturday. What day of the week will it be after 48 days? (a) Saturday (b) Thursday (c) Friday (d) Sunday
32. 32.If 4 January is a Monday, what day of the week is 15 January? (a) Friday (b) Thursday (c) Saturday (d) Sunday
33. 33.If 12 December is a Sunday, what day of the week is 22 December? (a) Friday (b) Thursday (c) Wednesday (d) Tuesday
34. 34.If 2 July is a Friday, what day of the week is 10 July? (a) Sunday (b) Friday (c) Saturday (d) Monday
35. 35.If 12 January is a Thursday, what day of the week is 20 January? (a) Thursday (b) Sunday (c) Friday (d) Saturday
36. 36.If 10 March is a Saturday, what day of the week is 17 April? (a) Wednesday (b) Thursday (c) Tuesday (d) Monday
37. 37.If 8 March is a Monday, what day of the week is 23 March? (a) Monday (b) Wednesday (c) Tuesday (d) Thursday
38. 38.If 15 December is a Wednesday, what day of the week is 25 December? (a) Monday (b) Saturday (c) Sunday (d) Friday
39. 39.If 8 July is a Sunday, what day of the week is 23 July? (a) Tuesday (b) Monday (c) Sunday (d) Wednesday
40. 40.If 4 March is a Sunday, what day of the week is 12 March? (a) Tuesday (b) Sunday (c) Wednesday (d) Monday

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