Calendar Worksheet for Maths Olympiad

Maths Olympiad topic 12: Calendar puzzles · Set 875 · 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 16 January is a Wednesday, what day of the week is 8 February? (a) Thursday (b) Friday (c) Saturday (d) Sunday
2. 2.If 6 July is a Wednesday, what day of the week is 20 July? (a) Thursday (b) Wednesday (c) Friday (d) Tuesday
3. 3.If 21 July is a Wednesday, what day of the week is 20 August? (a) Friday (b) Thursday (c) Saturday (d) Sunday
4. 4.If 5 January is a Friday, what day of the week is 17 January? (a) Thursday (b) Friday (c) Tuesday (d) Wednesday
5. 5.If 9 July is a Tuesday, what day of the week is 25 July? (a) Thursday (b) Saturday (c) Friday (d) Wednesday
6. 6.If 23 August is a Wednesday, what day of the week is 13 September? (a) Friday (b) Thursday (c) Wednesday (d) Tuesday
7. 7.If 25 August is a Sunday, what day of the week is 4 September? (a) Tuesday (b) Wednesday (c) Thursday (d) Friday
8. 8.If 12 August is a Monday, what day of the week is 23 August? (a) Saturday (b) Friday (c) Sunday (d) Thursday
9. 9.If 5 December is a Sunday, what day of the week is 16 December? (a) Thursday (b) Saturday (c) Friday (d) Wednesday
10. 10.If 13 October is a Friday, what day of the week is 29 October? (a) Sunday (b) Monday (c) Tuesday (d) Saturday
11. 11.Today is Wednesday. What day of the week will it be after 38 days? (a) Sunday (b) Friday (c) Monday (d) Saturday
12. 12.If 30 August is a Tuesday, what day of the week is 19 September? (a) Monday (b) Tuesday (c) Sunday (d) Wednesday
13. 13.If 11 October is a Sunday, what day of the week is 19 October? (a) Tuesday (b) Monday (c) Wednesday (d) Sunday
14. 14.Today is Wednesday. What day of the week will it be after 52 days? (a) Sunday (b) Monday (c) Saturday (d) Friday
15. 15.Today is Monday. What day of the week will it be after 64 days? (a) Thursday (b) Tuesday (c) Wednesday (d) Monday
16. 16.If 10 October is a Saturday, what day of the week is 21 October? (a) Tuesday (b) Friday (c) Thursday (d) Wednesday
17. 17.If 15 July is a Sunday, what day of the week is 31 July? (a) Wednesday (b) Thursday (c) Monday (d) Tuesday
18. 18.If 11 September is a Tuesday, what day of the week is 18 October? (a) Wednesday (b) Friday (c) Saturday (d) Thursday
19. 19.Today is Monday. What day of the week will it be after 44 days? (a) Tuesday (b) Friday (c) Wednesday (d) Thursday
20. 20.If 15 January is a Monday, what day of the week is 26 January? (a) Friday (b) Sunday (c) Thursday (d) Saturday
21. 21.Today is Wednesday. What day of the week will it be after 93 days? (a) Saturday (b) Sunday (c) Thursday (d) Friday
22. 22.If 4 January is a Monday, what day of the week is 20 January? (a) Thursday (b) Wednesday (c) Tuesday (d) Friday
23. 23.Today is Wednesday. What day of the week will it be after 44 days? (a) Sunday (b) Friday (c) Thursday (d) Saturday
24. 24.If 19 August is a Friday, what day of the week is 2 September? (a) Sunday (b) Saturday (c) Thursday (d) Friday
25. 25.If 4 January is a Thursday, what day of the week is 19 January? (a) Sunday (b) Saturday (c) Thursday (d) Friday
26. 26.If 23 June is a Tuesday, what day of the week is 16 July? (a) Friday (b) Wednesday (c) Saturday (d) Thursday
27. 27.Today is Monday. What day of the week will it be after 85 days? (a) Thursday (b) Monday (c) Tuesday (d) Wednesday
28. 28.If 13 January is a Monday, what day of the week is 21 January? (a) Monday (b) Tuesday (c) Wednesday (d) Thursday
29. 29.If 5 March is a Tuesday, what day of the week is 13 March? (a) Tuesday (b) Thursday (c) Friday (d) Wednesday
30. 30.If 26 January is a Wednesday, what day of the week is 15 February? (a) Thursday (b) Wednesday (c) Monday (d) Tuesday
31. 31.Today is Wednesday. What day of the week will it be after 50 days? (a) Saturday (b) Wednesday (c) Friday (d) Thursday
32. 32.If 12 January is a Sunday, what day of the week is 6 February? (a) Thursday (b) Saturday (c) Friday (d) Wednesday
33. 33.If 26 January is a Wednesday, what day of the week is 10 February? (a) Thursday (b) Saturday (c) Wednesday (d) Friday
34. 34.Today is Wednesday. What day of the week will it be after 17 days? (a) Saturday (b) Monday (c) Friday (d) Sunday
35. 35.If 3 July is a Monday, what day of the week is 15 July? (a) Sunday (b) Monday (c) Friday (d) Saturday
36. 36.Today is Monday. What day of the week will it be after 71 days? (a) Tuesday (b) Wednesday (c) Thursday (d) Monday
37. 37.Today is Monday. What day of the week will it be after 35 days? (a) Sunday (b) Wednesday (c) Monday (d) Tuesday
38. 38.If 25 January is a Wednesday, what day of the week is 1 February? (a) Thursday (b) Friday (c) Wednesday (d) Tuesday
39. 39.Today is Friday. What day of the week will it be after 91 days? (a) Saturday (b) Thursday (c) Sunday (d) Friday
40. 40.If 2 January is a Tuesday, what day of the week is 18 January? (a) Thursday (b) Saturday (c) Friday (d) Wednesday

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