Calendar Worksheet for Maths Olympiad

Maths Olympiad topic 12: Calendar puzzles · Set 458 · 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 73 days? (a) Friday (b) Tuesday (c) Wednesday (d) Thursday
2. 2.If 14 January is a Tuesday, what day of the week is 23 January? (a) Wednesday (b) Friday (c) Thursday (d) Saturday
3. 3.Today is Thursday. What day of the week will it be after 46 days? (a) Tuesday (b) Sunday (c) Monday (d) Wednesday
4. 4.If 9 July is a Friday, what day of the week is 22 July? (a) Saturday (b) Thursday (c) Wednesday (d) Friday
5. 5.If 11 March is a Sunday, what day of the week is 6 April? (a) Friday (b) Saturday (c) Thursday (d) Sunday
6. 6.If 13 December is a Monday, what day of the week is 23 December? (a) Wednesday (b) Thursday (c) Saturday (d) Friday
7. 7.Today is Saturday. What day of the week will it be after 17 days? (a) Tuesday (b) Thursday (c) Monday (d) Wednesday
8. 8.Today is Thursday. What day of the week will it be after 21 days? (a) Saturday (b) Wednesday (c) Thursday (d) Friday
9. 9.If 3 January is a Sunday, what day of the week is 18 January? (a) Sunday (b) Wednesday (c) Monday (d) Tuesday
10. 10.If 16 September is a Sunday, what day of the week is 11 October? (a) Saturday (b) Thursday (c) Wednesday (d) Friday
11. 11.If 7 January is a Sunday, what day of the week is 16 January? (a) Thursday (b) Wednesday (c) Tuesday (d) Monday
12. 12.If 12 January is a Friday, what day of the week is 5 February? (a) Monday (b) Wednesday (c) Sunday (d) Tuesday
13. 13.If 15 October is a Sunday, what day of the week is 7 November? (a) Wednesday (b) Monday (c) Thursday (d) Tuesday
14. 14.If 12 January is a Saturday, what day of the week is 24 January? (a) Saturday (b) Thursday (c) Wednesday (d) Friday
15. 15.If 17 September is a Sunday, what day of the week is 19 October? (a) Wednesday (b) Friday (c) Saturday (d) Thursday
16. 16.If 3 December is a Wednesday, what day of the week is 18 December? (a) Wednesday (b) Saturday (c) Friday (d) Thursday
17. 17.Today is Friday. What day of the week will it be after 68 days? (a) Tuesday (b) Thursday (c) Friday (d) Wednesday
18. 18.Today is Monday. What day of the week will it be after 72 days? (a) Thursday (b) Wednesday (c) Friday (d) Tuesday
19. 19.If 3 January is a Wednesday, what day of the week is 18 January? (a) Friday (b) Saturday (c) Wednesday (d) Thursday
20. 20.If 11 March is a Monday, what day of the week is 20 March? (a) Tuesday (b) Wednesday (c) Friday (d) Thursday
21. 21.If 3 March is a Thursday, what day of the week is 13 March? (a) Saturday (b) Sunday (c) Tuesday (d) Monday
22. 22.Today is Monday. What day of the week will it be after 31 days? (a) Saturday (b) Wednesday (c) Friday (d) Thursday
23. 23.Today is Thursday. What day of the week will it be after 51 days? (a) Saturday (b) Sunday (c) Monday (d) Friday
24. 24.If 7 January is a Saturday, what day of the week is 23 January? (a) Wednesday (b) Tuesday (c) Sunday (d) Monday
25. 25.If 7 January is a Saturday, what day of the week is 19 January? (a) Wednesday (b) Thursday (c) Friday (d) Saturday
26. 26.Today is Monday. What day of the week will it be after 68 days? (a) Friday (b) Sunday (c) Saturday (d) Monday
27. 27.If 7 July is a Sunday, what day of the week is 15 July? (a) Tuesday (b) Monday (c) Sunday (d) Wednesday
28. 28.Today is Saturday. What day of the week will it be after 25 days? (a) Wednesday (b) Tuesday (c) Friday (d) Thursday
29. 29.If 4 January is a Tuesday, what day of the week is 15 January? (a) Monday (b) Saturday (c) Sunday (d) Friday
30. 30.If 27 March is a Friday, what day of the week is 10 April? (a) Thursday (b) Sunday (c) Friday (d) Saturday
31. 31.If 10 December is a Friday, what day of the week is 22 December? (a) Friday (b) Wednesday (c) Tuesday (d) Thursday
32. 32.If 26 January is a Wednesday, what day of the week is 15 February? (a) Monday (b) Tuesday (c) Wednesday (d) Thursday
33. 33.Today is Wednesday. What day of the week will it be after 35 days? (a) Thursday (b) Wednesday (c) Friday (d) Tuesday
34. 34.If 3 December is a Sunday, what day of the week is 12 December? (a) Monday (b) Thursday (c) Wednesday (d) Tuesday
35. 35.If 4 May is a Wednesday, what day of the week is 15 May? (a) Saturday (b) Sunday (c) Tuesday (d) Monday
36. 36.If 10 October is a Wednesday, what day of the week is 11 November? (a) Tuesday (b) Saturday (c) Sunday (d) Monday
37. 37.If 12 December is a Wednesday, what day of the week is 21 December? (a) Saturday (b) Thursday (c) Friday (d) Sunday
38. 38.Today is Friday. What day of the week will it be after 47 days? (a) Friday (b) Tuesday (c) Thursday (d) Wednesday
39. 39.Today is Wednesday. What day of the week will it be after 19 days? (a) Sunday (b) Monday (c) Tuesday (d) Wednesday
40. 40.If 2 July is a Thursday, what day of the week is 13 July? (a) Wednesday (b) Monday (c) Tuesday (d) Sunday

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