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Calendar Worksheet for Maths Olympiad

Maths Olympiad topic 12: Calendar puzzles · Set 434 · 40 questions
TalentJR

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.

NameDateTime takenScore ___ / 40
  1. 1.Today is Sunday. What day of the week will it be after 99 days? (a) Monday (b) Sunday (c) Wednesday (d) Tuesday
  2. 2.If 6 January is a Sunday, what day of the week is 16 January? (a) Tuesday (b) Wednesday (c) Thursday (d) Friday
  3. 3.Today is Wednesday. What day of the week will it be after 77 days? (a) Tuesday (b) Thursday (c) Friday (d) Wednesday
  4. 4.If 12 April is a Monday, what day of the week is 12 May? (a) Wednesday (b) Thursday (c) Friday (d) Tuesday
  5. 5.Today is Sunday. What day of the week will it be after 41 days? (a) Friday (b) Sunday (c) Saturday (d) Monday
  6. 6.If 4 December is a Friday, what day of the week is 15 December? (a) Thursday (b) Tuesday (c) Monday (d) Wednesday
  7. 7.If 26 October is a Sunday, what day of the week is 19 November? (a) Wednesday (b) Friday (c) Tuesday (d) Thursday
  8. 8.Today is Wednesday. What day of the week will it be after 86 days? (a) Sunday (b) Thursday (c) Saturday (d) Friday
  9. 9.If 27 January is a Friday, what day of the week is 6 February? (a) Wednesday (b) Sunday (c) Monday (d) Tuesday
  10. 10.If 2 May is a Wednesday, what day of the week is 11 May? (a) Thursday (b) Sunday (c) Friday (d) Saturday
  11. 11.If 15 May is a Wednesday, what day of the week is 10 June? (a) Wednesday (b) Tuesday (c) Monday (d) Sunday
  12. 12.Today is Sunday. What day of the week will it be after 37 days? (a) Thursday (b) Monday (c) Tuesday (d) Wednesday
  13. 13.If 17 August is a Wednesday, what day of the week is 2 September? (a) Thursday (b) Sunday (c) Saturday (d) Friday
  14. 14.If 10 July is a Monday, what day of the week is 21 July? (a) Friday (b) Thursday (c) Saturday (d) Sunday
  15. 15.Today is Tuesday. What day of the week will it be after 30 days? (a) Thursday (b) Wednesday (c) Saturday (d) Friday
  16. 16.If 14 July is a Tuesday, what day of the week is 29 July? (a) Thursday (b) Tuesday (c) Wednesday (d) Friday
  17. 17.If 31 July is a Monday, what day of the week is 13 August? (a) Saturday (b) Monday (c) Sunday (d) Tuesday
  18. 18.If 10 October is a Tuesday, what day of the week is 14 November? (a) Monday (b) Tuesday (c) Thursday (d) Wednesday
  19. 19.If 10 January is a Monday, what day of the week is 26 January? (a) Tuesday (b) Friday (c) Thursday (d) Wednesday
  20. 20.Today is Sunday. What day of the week will it be after 46 days? (a) Friday (b) Saturday (c) Thursday (d) Wednesday
  21. 21.If 10 May is a Friday, what day of the week is 7 June? (a) Friday (b) Saturday (c) Thursday (d) Sunday
  22. 22.Today is Thursday. What day of the week will it be after 50 days? (a) Sunday (b) Friday (c) Saturday (d) Thursday
  23. 23.Today is Tuesday. What day of the week will it be after 51 days? (a) Friday (b) Thursday (c) Saturday (d) Wednesday
  24. 24.If 1 October is a Sunday, what day of the week is 17 October? (a) Thursday (b) Wednesday (c) Tuesday (d) Monday
  25. 25.If 15 August is a Friday, what day of the week is 17 September? (a) Friday (b) Wednesday (c) Thursday (d) Tuesday
  26. 26.If 12 July is a Friday, what day of the week is 21 July? (a) Tuesday (b) Monday (c) Saturday (d) Sunday
  27. 27.If 7 March is a Monday, what day of the week is 20 March? (a) Monday (b) Tuesday (c) Sunday (d) Saturday
  28. 28.If 29 July is a Wednesday, what day of the week is 4 August? (a) Monday (b) Wednesday (c) Thursday (d) Tuesday
  29. 29.Today is Wednesday. What day of the week will it be after 32 days? (a) Saturday (b) Sunday (c) Tuesday (d) Monday
  30. 30.If 24 May is a Saturday, what day of the week is 1 June? (a) Tuesday (b) Sunday (c) Saturday (d) Monday
  31. 31.If 2 January is a Wednesday, what day of the week is 15 January? (a) Thursday (b) Monday (c) Tuesday (d) Wednesday
  32. 32.If 28 January is a Saturday, what day of the week is 4 February? (a) Saturday (b) Monday (c) Friday (d) Sunday
  33. 33.If 9 March is a Tuesday, what day of the week is 19 March? (a) Sunday (b) Thursday (c) Friday (d) Saturday
  34. 34.If 9 August is a Friday, what day of the week is 22 August? (a) Wednesday (b) Saturday (c) Thursday (d) Friday
  35. 35.Today is Friday. What day of the week will it be after 82 days? (a) Friday (b) Tuesday (c) Thursday (d) Wednesday
  36. 36.Today is Tuesday. What day of the week will it be after 14 days? (a) Wednesday (b) Tuesday (c) Monday (d) Thursday
  37. 37.If 14 July is a Sunday, what day of the week is 30 July? (a) Monday (b) Tuesday (c) Thursday (d) Wednesday
  38. 38.If 3 August is a Friday, what day of the week is 19 August? (a) Tuesday (b) Sunday (c) Saturday (d) Monday
  39. 39.If 14 July is a Friday, what day of the week is 23 July? (a) Tuesday (b) Sunday (c) Monday (d) Saturday
  40. 40.If 21 July is a Monday, what day of the week is 1 August? (a) Friday (b) Saturday (c) Sunday (d) Thursday

Answer key

  1. Monday
  2. Wednesday
  3. Wednesday
  4. Wednesday
  5. Saturday
  6. Tuesday
  7. Wednesday
  8. Friday
  9. Monday
  10. Friday
  11. Monday
  12. Tuesday
  13. Friday
  14. Friday
  15. Thursday
  16. Wednesday
  17. Sunday
  18. Tuesday
  19. Wednesday
  20. Thursday
  21. Friday
  22. Friday
  23. Thursday
  24. Tuesday
  25. Wednesday
  26. Sunday
  27. Sunday
  28. Tuesday
  29. Sunday
  30. Sunday
  31. Tuesday
  32. Saturday
  33. Friday
  34. Thursday
  35. Wednesday
  36. Tuesday
  37. Tuesday
  38. Sunday
  39. Sunday
  40. Friday

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