Calendar Worksheet for Maths Olympiad

Maths Olympiad topic 12: Calendar puzzles · Set 886 · 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 12 October is a Thursday, what day of the week is 25 October? (a) Friday (b) Wednesday (c) Thursday (d) Tuesday
2. 2.If 15 July is a Friday, what day of the week is 25 July? (a) Tuesday (b) Wednesday (c) Monday (d) Sunday
3. 3.If 4 October is a Monday, what day of the week is 14 October? (a) Friday (b) Wednesday (c) Saturday (d) Thursday
4. 4.If 11 January is a Wednesday, what day of the week is 20 January? (a) Saturday (b) Thursday (c) Sunday (d) Friday
5. 5.If 24 January is a Saturday, what day of the week is 4 February? (a) Tuesday (b) Wednesday (c) Friday (d) Thursday
6. 6.If 1 August is a Monday, what day of the week is 17 August? (a) Wednesday (b) Tuesday (c) Friday (d) Thursday
7. 7.If 11 August is a Saturday, what day of the week is 11 September? (a) Thursday (b) Tuesday (c) Monday (d) Wednesday
8. 8.If 18 August is a Saturday, what day of the week is 4 September? (a) Monday (b) Tuesday (c) Wednesday (d) Thursday
9. 9.If 24 January is a Tuesday, what day of the week is 1 February? (a) Wednesday (b) Friday (c) Thursday (d) Tuesday
10. 10.Today is Thursday. What day of the week will it be after 78 days? (a) Saturday (b) Thursday (c) Friday (d) Sunday
11. 11.Today is Friday. What day of the week will it be after 50 days? (a) Friday (b) Monday (c) Saturday (d) Sunday
12. 12.If 9 January is a Sunday, what day of the week is 25 January? (a) Wednesday (b) Thursday (c) Monday (d) Tuesday
13. 13.If 11 August is a Wednesday, what day of the week is 23 August? (a) Sunday (b) Wednesday (c) Tuesday (d) Monday
14. 14.Today is Friday. What day of the week will it be after 65 days? (a) Monday (b) Tuesday (c) Sunday (d) Saturday
15. 15.If 7 October is a Thursday, what day of the week is 15 October? (a) Thursday (b) Friday (c) Sunday (d) Saturday
16. 16.If 26 November is a Monday, what day of the week is 6 December? (a) Wednesday (b) Friday (c) Thursday (d) Saturday
17. 17.If 1 January is a Wednesday, what day of the week is 9 January? (a) Wednesday (b) Friday (c) Thursday (d) Saturday
18. 18.If 4 January is a Friday, what day of the week is 20 January? (a) Saturday (b) Monday (c) Sunday (d) Tuesday
19. 19.If 15 December is a Sunday, what day of the week is 23 December? (a) Wednesday (b) Tuesday (c) Monday (d) Sunday
20. 20.Today is Saturday. What day of the week will it be after 33 days? (a) Wednesday (b) Friday (c) Saturday (d) Thursday
21. 21.Today is Friday. What day of the week will it be after 34 days? (a) Saturday (b) Friday (c) Wednesday (d) Thursday
22. 22.If 21 July is a Friday, what day of the week is 20 August? (a) Sunday (b) Saturday (c) Tuesday (d) Monday
23. 23.If 9 August is a Wednesday, what day of the week is 25 August? (a) Sunday (b) Thursday (c) Friday (d) Saturday
24. 24.Today is Thursday. What day of the week will it be after 99 days? (a) Sunday (b) Friday (c) Saturday (d) Thursday
25. 25.If 17 September is a Wednesday, what day of the week is 8 October? (a) Thursday (b) Wednesday (c) Friday (d) Tuesday
26. 26.If 9 May is a Monday, what day of the week is 22 May? (a) Monday (b) Sunday (c) Saturday (d) Tuesday
27. 27.If 8 October is a Thursday, what day of the week is 24 October? (a) Friday (b) Saturday (c) Monday (d) Sunday
28. 28.Today is Tuesday. What day of the week will it be after 39 days? (a) Sunday (b) Monday (c) Friday (d) Saturday
29. 29.Today is Tuesday. What day of the week will it be after 25 days? (a) Friday (b) Sunday (c) Monday (d) Saturday
30. 30.Today is Wednesday. What day of the week will it be after 39 days? (a) Tuesday (b) Monday (c) Sunday (d) Saturday
31. 31.If 13 July is a Wednesday, what day of the week is 28 July? (a) Friday (b) Saturday (c) Wednesday (d) Thursday
32. 32.Today is Wednesday. What day of the week will it be after 99 days? (a) Saturday (b) Friday (c) Thursday (d) Wednesday
33. 33.Today is Sunday. What day of the week will it be after 10 days? (a) Friday (b) Wednesday (c) Thursday (d) Tuesday
34. 34.Today is Sunday. What day of the week will it be after 80 days? (a) Tuesday (b) Wednesday (c) Thursday (d) Friday
35. 35.If 14 July is a Thursday, what day of the week is 29 July? (a) Thursday (b) Friday (c) Sunday (d) Saturday
36. 36.Today is Tuesday. What day of the week will it be after 20 days? (a) Sunday (b) Tuesday (c) Monday (d) Wednesday
37. 37.If 24 April is a Sunday, what day of the week is 15 May? (a) Sunday (b) Tuesday (c) Monday (d) Saturday
38. 38.Today is Saturday. What day of the week will it be after 29 days? (a) Saturday (b) Sunday (c) Monday (d) Tuesday
39. 39.Today is Monday. What day of the week will it be after 76 days? (a) Tuesday (b) Saturday (c) Sunday (d) Monday
40. 40.Today is Saturday. What day of the week will it be after 70 days? (a) Saturday (b) Sunday (c) Friday (d) Monday

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