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Calendar Worksheet for Maths Olympiad

Maths Olympiad topic 12: Calendar puzzles · Set 489 · 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 31 January is a Monday, what day of the week is 6 February? (a) Monday (b) Saturday (c) Tuesday (d) Sunday
  2. 2.If 21 September is a Tuesday, what day of the week is 19 October? (a) Wednesday (b) Monday (c) Tuesday (d) Thursday
  3. 3.Today is Sunday. What day of the week will it be after 84 days? (a) Sunday (b) Saturday (c) Monday (d) Tuesday
  4. 4.If 11 March is a Friday, what day of the week is 27 March? (a) Monday (b) Sunday (c) Tuesday (d) Saturday
  5. 5.Today is Monday. What day of the week will it be after 20 days? (a) Saturday (b) Sunday (c) Tuesday (d) Monday
  6. 6.Today is Thursday. What day of the week will it be after 35 days? (a) Thursday (b) Wednesday (c) Friday (d) Saturday
  7. 7.If 3 October is a Friday, what day of the week is 19 October? (a) Monday (b) Sunday (c) Saturday (d) Tuesday
  8. 8.If 2 December is a Saturday, what day of the week is 15 December? (a) Sunday (b) Saturday (c) Thursday (d) Friday
  9. 9.Today is Wednesday. What day of the week will it be after 29 days? (a) Wednesday (b) Friday (c) Saturday (d) Thursday
  10. 10.If 3 December is a Tuesday, what day of the week is 13 December? (a) Sunday (b) Thursday (c) Friday (d) Saturday
  11. 11.If 15 March is a Tuesday, what day of the week is 25 March? (a) Thursday (b) Sunday (c) Friday (d) Saturday
  12. 12.If 30 September is a Thursday, what day of the week is 18 October? (a) Tuesday (b) Sunday (c) Wednesday (d) Monday
  13. 13.If 26 January is a Friday, what day of the week is 16 February? (a) Thursday (b) Saturday (c) Sunday (d) Friday
  14. 14.If 14 July is a Wednesday, what day of the week is 25 July? (a) Tuesday (b) Saturday (c) Monday (d) Sunday
  15. 15.If 12 December is a Friday, what day of the week is 24 December? (a) Thursday (b) Friday (c) Wednesday (d) Tuesday
  16. 16.If 20 March is a Friday, what day of the week is 3 April? (a) Thursday (b) Sunday (c) Friday (d) Saturday
  17. 17.Today is Wednesday. What day of the week will it be after 28 days? (a) Friday (b) Thursday (c) Wednesday (d) Tuesday
  18. 18.If 3 October is a Sunday, what day of the week is 15 October? (a) Saturday (b) Thursday (c) Sunday (d) Friday
  19. 19.If 3 May is a Tuesday, what day of the week is 15 May? (a) Saturday (b) Monday (c) Tuesday (d) Sunday
  20. 20.If 21 May is a Monday, what day of the week is 16 June? (a) Sunday (b) Saturday (c) Monday (d) Friday
  21. 21.If 25 September is a Thursday, what day of the week is 1 October? (a) Tuesday (b) Friday (c) Wednesday (d) Thursday
  22. 22.If 28 April is a Wednesday, what day of the week is 6 May? (a) Wednesday (b) Saturday (c) Friday (d) Thursday
  23. 23.Today is Sunday. What day of the week will it be after 37 days? (a) Thursday (b) Monday (c) Tuesday (d) Wednesday
  24. 24.Today is Monday. What day of the week will it be after 84 days? (a) Tuesday (b) Sunday (c) Monday (d) Wednesday
  25. 25.If 13 May is a Monday, what day of the week is 1 June? (a) Monday (b) Sunday (c) Friday (d) Saturday
  26. 26.Today is Thursday. What day of the week will it be after 81 days? (a) Wednesday (b) Monday (c) Tuesday (d) Sunday
  27. 27.If 31 July is a Friday, what day of the week is 1 August? (a) Saturday (b) Monday (c) Friday (d) Sunday
  28. 28.Today is Tuesday. What day of the week will it be after 26 days? (a) Tuesday (b) Saturday (c) Monday (d) Sunday
  29. 29.If 30 October is a Saturday, what day of the week is 19 November? (a) Sunday (b) Thursday (c) Saturday (d) Friday
  30. 30.If 18 October is a Sunday, what day of the week is 14 November? (a) Sunday (b) Saturday (c) Friday (d) Monday
  31. 31.If 10 November is a Saturday, what day of the week is 17 December? (a) Sunday (b) Monday (c) Tuesday (d) Wednesday
  32. 32.If 13 January is a Friday, what day of the week is 14 February? (a) Thursday (b) Wednesday (c) Monday (d) Tuesday
  33. 33.If 28 October is a Saturday, what day of the week is 1 November? (a) Thursday (b) Tuesday (c) Wednesday (d) Friday
  34. 34.Today is Wednesday. What day of the week will it be after 43 days? (a) Saturday (b) Thursday (c) Wednesday (d) Friday
  35. 35.Today is Saturday. What day of the week will it be after 42 days? (a) Sunday (b) Saturday (c) Friday (d) Monday
  36. 36.Today is Thursday. What day of the week will it be after 42 days? (a) Saturday (b) Friday (c) Wednesday (d) Thursday
  37. 37.If 30 October is a Saturday, what day of the week is 17 November? (a) Thursday (b) Friday (c) Tuesday (d) Wednesday
  38. 38.Today is Saturday. What day of the week will it be after 12 days? (a) Thursday (b) Wednesday (c) Saturday (d) Friday
  39. 39.If 15 April is a Monday, what day of the week is 2 May? (a) Thursday (b) Wednesday (c) Friday (d) Saturday
  40. 40.If 10 November is a Friday, what day of the week is 20 December? (a) Friday (b) Wednesday (c) Tuesday (d) Thursday

Answer key

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

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