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Calendar Worksheet for Maths Olympiad

Maths Olympiad topic 12: Calendar puzzles · Set 621 · 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 30 July is a Saturday, what day of the week is 11 August? (a) Wednesday (b) Thursday (c) Saturday (d) Friday
  2. 2.If 6 August is a Saturday, what day of the week is 21 August? (a) Monday (b) Sunday (c) Tuesday (d) Saturday
  3. 3.If 29 August is a Friday, what day of the week is 12 September? (a) Sunday (b) Friday (c) Saturday (d) Thursday
  4. 4.If 6 December is a Monday, what day of the week is 17 December? (a) Saturday (b) Thursday (c) Friday (d) Sunday
  5. 5.Today is Sunday. What day of the week will it be after 27 days? (a) Friday (b) Monday (c) Sunday (d) Saturday
  6. 6.Today is Saturday. What day of the week will it be after 21 days? (a) Monday (b) Sunday (c) Saturday (d) Friday
  7. 7.Today is Monday. What day of the week will it be after 58 days? (a) Thursday (b) Wednesday (c) Tuesday (d) Friday
  8. 8.If 6 December is a Tuesday, what day of the week is 15 December? (a) Thursday (b) Saturday (c) Friday (d) Wednesday
  9. 9.Today is Tuesday. What day of the week will it be after 66 days? (a) Saturday (b) Sunday (c) Friday (d) Thursday
  10. 10.If 28 March is a Friday, what day of the week is 1 April? (a) Wednesday (b) Thursday (c) Monday (d) Tuesday
  11. 11.Today is Friday. What day of the week will it be after 71 days? (a) Sunday (b) Friday (c) Saturday (d) Monday
  12. 12.If 14 December is a Saturday, what day of the week is 27 December? (a) Thursday (b) Friday (c) Saturday (d) Sunday
  13. 13.If 28 November is a Sunday, what day of the week is 3 December? (a) Friday (b) Sunday (c) Saturday (d) Thursday
  14. 14.If 5 December is a Saturday, what day of the week is 21 December? (a) Wednesday (b) Tuesday (c) Sunday (d) Monday
  15. 15.If 4 October is a Saturday, what day of the week is 20 October? (a) Tuesday (b) Sunday (c) Wednesday (d) Monday
  16. 16.If 14 March is a Tuesday, what day of the week is 4 April? (a) Monday (b) Thursday (c) Wednesday (d) Tuesday
  17. 17.If 24 November is a Friday, what day of the week is 19 December? (a) Monday (b) Tuesday (c) Wednesday (d) Thursday
  18. 18.If 15 July is a Wednesday, what day of the week is 23 July? (a) Friday (b) Wednesday (c) Saturday (d) Thursday
  19. 19.If 29 March is a Monday, what day of the week is 4 April? (a) Saturday (b) Monday (c) Tuesday (d) Sunday
  20. 20.If 2 December is a Tuesday, what day of the week is 10 December? (a) Wednesday (b) Tuesday (c) Friday (d) Thursday
  21. 21.If 10 January is a Thursday, what day of the week is 21 January? (a) Sunday (b) Monday (c) Tuesday (d) Wednesday
  22. 22.If 4 May is a Thursday, what day of the week is 14 May? (a) Tuesday (b) Sunday (c) Saturday (d) Monday
  23. 23.If 9 October is a Thursday, what day of the week is 21 October? (a) Wednesday (b) Monday (c) Thursday (d) Tuesday
  24. 24.If 1 May is a Friday, what day of the week is 14 May? (a) Saturday (b) Friday (c) Wednesday (d) Thursday
  25. 25.If 7 October is a Tuesday, what day of the week is 15 October? (a) Wednesday (b) Tuesday (c) Friday (d) Thursday
  26. 26.If 3 July is a Monday, what day of the week is 17 July? (a) Sunday (b) Tuesday (c) Wednesday (d) Monday
  27. 27.If 13 November is a Friday, what day of the week is 20 December? (a) Sunday (b) Tuesday (c) Monday (d) Saturday
  28. 28.Today is Monday. What day of the week will it be after 86 days? (a) Thursday (b) Tuesday (c) Friday (d) Wednesday
  29. 29.If 4 August is a Tuesday, what day of the week is 13 August? (a) Saturday (b) Wednesday (c) Thursday (d) Friday
  30. 30.If 2 October is a Thursday, what day of the week is 17 October? (a) Thursday (b) Saturday (c) Friday (d) Sunday
  31. 31.If 5 December is a Friday, what day of the week is 20 December? (a) Monday (b) Sunday (c) Friday (d) Saturday
  32. 32.If 14 May is a Tuesday, what day of the week is 7 June? (a) Sunday (b) Saturday (c) Friday (d) Thursday
  33. 33.If 13 July is a Tuesday, what day of the week is 23 July? (a) Thursday (b) Sunday (c) Friday (d) Saturday
  34. 34.Today is Saturday. What day of the week will it be after 35 days? (a) Saturday (b) Monday (c) Sunday (d) Friday
  35. 35.If 28 November is a Wednesday, what day of the week is 8 December? (a) Friday (b) Sunday (c) Monday (d) Saturday
  36. 36.If 26 November is a Friday, what day of the week is 4 December? (a) Sunday (b) Friday (c) Monday (d) Saturday
  37. 37.If 31 March is a Monday, what day of the week is 4 April? (a) Friday (b) Thursday (c) Saturday (d) Sunday
  38. 38.If 6 October is a Sunday, what day of the week is 17 October? (a) Friday (b) Saturday (c) Thursday (d) Wednesday
  39. 39.If 3 October is a Thursday, what day of the week is 13 October? (a) Monday (b) Sunday (c) Tuesday (d) Saturday
  40. 40.Today is Monday. What day of the week will it be after 61 days? (a) Sunday (b) Saturday (c) Friday (d) Monday

Answer key

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

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