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Calendar Worksheet for Maths Olympiad

Maths Olympiad topic 12: Calendar puzzles · Set 986 · 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.If 1 January is a Friday, what day of the week is 14 January? (a) Saturday (b) Friday (c) Wednesday (d) Thursday
  2. 2.If 8 August is a Tuesday, what day of the week is 23 August? (a) Friday (b) Wednesday (c) Thursday (d) Tuesday
  3. 3.If 11 January is a Thursday, what day of the week is 21 January? (a) Sunday (b) Saturday (c) Monday (d) Tuesday
  4. 4.If 25 May is a Friday, what day of the week is 7 June? (a) Saturday (b) Thursday (c) Friday (d) Wednesday
  5. 5.If 29 October is a Friday, what day of the week is 4 November? (a) Wednesday (b) Friday (c) Thursday (d) Saturday
  6. 6.If 16 September is a Wednesday, what day of the week is 1 October? (a) Saturday (b) Friday (c) Wednesday (d) Thursday
  7. 7.If 15 December is a Wednesday, what day of the week is 30 December? (a) Friday (b) Wednesday (c) Saturday (d) Thursday
  8. 8.If 8 August is a Friday, what day of the week is 21 August? (a) Thursday (b) Wednesday (c) Saturday (d) Friday
  9. 9.If 13 July is a Monday, what day of the week is 27 July? (a) Wednesday (b) Sunday (c) Tuesday (d) Monday
  10. 10.If 10 June is a Monday, what day of the week is 12 July? (a) Thursday (b) Friday (c) Sunday (d) Saturday
  11. 11.Today is Sunday. What day of the week will it be after 68 days? (a) Sunday (b) Saturday (c) Friday (d) Thursday
  12. 12.If 14 March is a Thursday, what day of the week is 22 March? (a) Friday (b) Saturday (c) Thursday (d) Sunday
  13. 13.If 30 April is a Wednesday, what day of the week is 14 May? (a) Thursday (b) Friday (c) Tuesday (d) Wednesday
  14. 14.If 21 January is a Wednesday, what day of the week is 19 February? (a) Friday (b) Wednesday (c) Saturday (d) Thursday
  15. 15.If 22 April is a Saturday, what day of the week is 14 May? (a) Monday (b) Tuesday (c) Saturday (d) Sunday
  16. 16.If 9 March is a Wednesday, what day of the week is 18 March? (a) Friday (b) Thursday (c) Sunday (d) Saturday
  17. 17.Today is Thursday. What day of the week will it be after 32 days? (a) Wednesday (b) Monday (c) Sunday (d) Tuesday
  18. 18.If 16 July is a Thursday, what day of the week is 14 August? (a) Sunday (b) Friday (c) Thursday (d) Saturday
  19. 19.Today is Friday. What day of the week will it be after 89 days? (a) Wednesday (b) Tuesday (c) Friday (d) Thursday
  20. 20.If 12 January is a Saturday, what day of the week is 26 January? (a) Monday (b) Friday (c) Sunday (d) Saturday
  21. 21.Today is Friday. What day of the week will it be after 63 days? (a) Sunday (b) Saturday (c) Friday (d) Thursday
  22. 22.If 5 May is a Saturday, what day of the week is 17 May? (a) Friday (b) Thursday (c) Saturday (d) Wednesday
  23. 23.If 30 January is a Sunday, what day of the week is 2 February? (a) Thursday (b) Friday (c) Wednesday (d) Tuesday
  24. 24.Today is Saturday. What day of the week will it be after 55 days? (a) Thursday (b) Friday (c) Sunday (d) Saturday
  25. 25.If 12 November is a Sunday, what day of the week is 14 December? (a) Friday (b) Wednesday (c) Saturday (d) Thursday
  26. 26.Today is Sunday. What day of the week will it be after 31 days? (a) Thursday (b) Friday (c) Tuesday (d) Wednesday
  27. 27.If 28 January is a Thursday, what day of the week is 1 February? (a) Monday (b) Wednesday (c) Tuesday (d) Sunday
  28. 28.If 29 June is a Tuesday, what day of the week is 9 July? (a) Sunday (b) Thursday (c) Saturday (d) Friday
  29. 29.If 1 December is a Thursday, what day of the week is 14 December? (a) Tuesday (b) Friday (c) Thursday (d) Wednesday
  30. 30.Today is Friday. What day of the week will it be after 81 days? (a) Wednesday (b) Thursday (c) Monday (d) Tuesday
  31. 31.If 5 December is a Tuesday, what day of the week is 19 December? (a) Wednesday (b) Tuesday (c) Monday (d) Thursday
  32. 32.If 8 January is a Wednesday, what day of the week is 16 January? (a) Friday (b) Thursday (c) Wednesday (d) Saturday
  33. 33.Today is Tuesday. What day of the week will it be after 15 days? (a) Friday (b) Thursday (c) Wednesday (d) Tuesday
  34. 34.If 28 March is a Thursday, what day of the week is 1 April? (a) Tuesday (b) Wednesday (c) Sunday (d) Monday
  35. 35.Today is Friday. What day of the week will it be after 35 days? (a) Saturday (b) Thursday (c) Sunday (d) Friday
  36. 36.If 7 August is a Wednesday, what day of the week is 19 August? (a) Tuesday (b) Wednesday (c) Sunday (d) Monday
  37. 37.Today is Saturday. What day of the week will it be after 26 days? (a) Thursday (b) Friday (c) Wednesday (d) Saturday
  38. 38.If 14 March is a Wednesday, what day of the week is 22 March? (a) Thursday (b) Wednesday (c) Saturday (d) Friday
  39. 39.If 14 July is a Monday, what day of the week is 24 July? (a) Friday (b) Wednesday (c) Thursday (d) Saturday
  40. 40.If 15 March is a Monday, what day of the week is 7 April? (a) Wednesday (b) Friday (c) Tuesday (d) Thursday

Answer key

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

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