Calendar Worksheet for Maths Olympiad

Maths Olympiad topic 12: Calendar puzzles · Set 817 · 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 3 January is a Monday, what day of the week is 13 January? (a) Saturday (b) Thursday (c) Friday (d) Wednesday
2. 2.Today is Tuesday. What day of the week will it be after 28 days? (a) Wednesday (b) Tuesday (c) Monday (d) Thursday
3. 3.If 9 July is a Sunday, what day of the week is 19 July? (a) Tuesday (b) Thursday (c) Wednesday (d) Friday
4. 4.Today is Wednesday. What day of the week will it be after 49 days? (a) Tuesday (b) Friday (c) Wednesday (d) Thursday
5. 5.If 30 September is a Friday, what day of the week is 3 October? (a) Wednesday (b) Monday (c) Tuesday (d) Sunday
6. 6.If 28 May is a Tuesday, what day of the week is 5 June? (a) Tuesday (b) Thursday (c) Friday (d) Wednesday
7. 7.If 15 December is a Saturday, what day of the week is 25 December? (a) Wednesday (b) Monday (c) Thursday (d) Tuesday
8. 8.If 11 January is a Monday, what day of the week is 25 January? (a) Monday (b) Wednesday (c) Sunday (d) Tuesday
9. 9.If 18 August is a Friday, what day of the week is 5 September? (a) Tuesday (b) Thursday (c) Monday (d) Wednesday
10. 10.If 15 May is a Sunday, what day of the week is 31 May? (a) Wednesday (b) Monday (c) Thursday (d) Tuesday
11. 11.If 16 September is a Tuesday, what day of the week is 7 October? (a) Wednesday (b) Tuesday (c) Monday (d) Thursday
12. 12.If 4 July is a Sunday, what day of the week is 20 July? (a) Tuesday (b) Monday (c) Wednesday (d) Thursday
13. 13.If 15 May is a Tuesday, what day of the week is 29 May? (a) Wednesday (b) Monday (c) Thursday (d) Tuesday
14. 14.Today is Friday. What day of the week will it be after 34 days? (a) Friday (b) Saturday (c) Thursday (d) Wednesday
15. 15.Today is Thursday. What day of the week will it be after 10 days? (a) Monday (b) Saturday (c) Sunday (d) Tuesday
16. 16.If 14 October is a Saturday, what day of the week is 2 November? (a) Friday (b) Wednesday (c) Saturday (d) Thursday
17. 17.If 28 July is a Monday, what day of the week is 3 August? (a) Monday (b) Saturday (c) Sunday (d) Tuesday
18. 18.If 20 March is a Sunday, what day of the week is 6 April? (a) Friday (b) Wednesday (c) Thursday (d) Tuesday
19. 19.If 17 May is a Friday, what day of the week is 6 June? (a) Friday (b) Thursday (c) Saturday (d) Wednesday
20. 20.If 12 January is a Sunday, what day of the week is 21 January? (a) Thursday (b) Monday (c) Tuesday (d) Wednesday
21. 21.If 5 May is a Thursday, what day of the week is 17 May? (a) Thursday (b) Wednesday (c) Tuesday (d) Monday
22. 22.Today is Wednesday. What day of the week will it be after 80 days? (a) Monday (b) Friday (c) Saturday (d) Sunday
23. 23.If 14 October is a Sunday, what day of the week is 16 November? (a) Friday (b) Thursday (c) Sunday (d) Saturday
24. 24.If 26 November is a Sunday, what day of the week is 4 December? (a) Wednesday (b) Tuesday (c) Sunday (d) Monday
25. 25.Today is Friday. What day of the week will it be after 92 days? (a) Sunday (b) Monday (c) Friday (d) Saturday
26. 26.Today is Tuesday. What day of the week will it be after 25 days? (a) Sunday (b) Saturday (c) Monday (d) Friday
27. 27.Today is Sunday. What day of the week will it be after 33 days? (a) Friday (b) Sunday (c) Thursday (d) Saturday
28. 28.If 2 December is a Tuesday, what day of the week is 11 December? (a) Friday (b) Thursday (c) Saturday (d) Wednesday
29. 29.If 10 November is a Thursday, what day of the week is 12 December? (a) Monday (b) Tuesday (c) Sunday (d) Wednesday
30. 30.If 1 July is a Friday, what day of the week is 17 July? (a) Saturday (b) Tuesday (c) Sunday (d) Monday
31. 31.If 6 January is a Thursday, what day of the week is 22 January? (a) Monday (b) Friday (c) Sunday (d) Saturday
32. 32.Today is Friday. What day of the week will it be after 79 days? (a) Saturday (b) Sunday (c) Tuesday (d) Monday
33. 33.If 1 December is a Wednesday, what day of the week is 17 December? (a) Sunday (b) Saturday (c) Friday (d) Thursday
34. 34.Today is Sunday. What day of the week will it be after 17 days? (a) Thursday (b) Friday (c) Tuesday (d) Wednesday
35. 35.Today is Tuesday. What day of the week will it be after 91 days? (a) Thursday (b) Monday (c) Tuesday (d) Wednesday
36. 36.If 17 June is a Tuesday, what day of the week is 1 July? (a) Wednesday (b) Monday (c) Thursday (d) Tuesday
37. 37.If 19 June is a Friday, what day of the week is 6 July? (a) Sunday (b) Wednesday (c) Tuesday (d) Monday
38. 38.If 29 April is a Tuesday, what day of the week is 6 May? (a) Tuesday (b) Thursday (c) Monday (d) Wednesday
39. 39.If 28 January is a Monday, what day of the week is 5 February? (a) Monday (b) Wednesday (c) Tuesday (d) Thursday
40. 40.If 14 March is a Monday, what day of the week is 5 April? (a) Thursday (b) Monday (c) Tuesday (d) Wednesday

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