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Calendar Worksheet for Maths Olympiad

Maths Olympiad topic 12: Calendar puzzles · Set 654 · 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 January is a Friday, what day of the week is 17 February? (a) Wednesday (b) Monday (c) Tuesday (d) Thursday
  2. 2.Today is Tuesday. What day of the week will it be after 66 days? (a) Sunday (b) Saturday (c) Friday (d) Thursday
  3. 3.If 14 May is a Wednesday, what day of the week is 30 May? (a) Saturday (b) Thursday (c) Friday (d) Sunday
  4. 4.If 8 March is a Thursday, what day of the week is 22 March? (a) Friday (b) Wednesday (c) Saturday (d) Thursday
  5. 5.If 31 July is a Thursday, what day of the week is 17 August? (a) Tuesday (b) Sunday (c) Saturday (d) Monday
  6. 6.Today is Wednesday. What day of the week will it be after 38 days? (a) Sunday (b) Friday (c) Saturday (d) Monday
  7. 7.Today is Tuesday. What day of the week will it be after 14 days? (a) Tuesday (b) Thursday (c) Wednesday (d) Monday
  8. 8.If 4 December is a Tuesday, what day of the week is 18 December? (a) Thursday (b) Wednesday (c) Tuesday (d) Monday
  9. 9.If 7 January is a Friday, what day of the week is 21 January? (a) Thursday (b) Sunday (c) Friday (d) Saturday
  10. 10.Today is Sunday. What day of the week will it be after 80 days? (a) Friday (b) Tuesday (c) Thursday (d) Wednesday
  11. 11.Today is Tuesday. What day of the week will it be after 21 days? (a) Thursday (b) Wednesday (c) Monday (d) Tuesday
  12. 12.If 18 July is a Thursday, what day of the week is 5 August? (a) Wednesday (b) Monday (c) Sunday (d) Tuesday
  13. 13.If 10 March is a Tuesday, what day of the week is 14 April? (a) Wednesday (b) Monday (c) Tuesday (d) Thursday
  14. 14.Today is Sunday. What day of the week will it be after 30 days? (a) Thursday (b) Wednesday (c) Tuesday (d) Monday
  15. 15.If 15 January is a Tuesday, what day of the week is 16 February? (a) Friday (b) Sunday (c) Saturday (d) Monday
  16. 16.If 14 January is a Saturday, what day of the week is 25 January? (a) Friday (b) Tuesday (c) Thursday (d) Wednesday
  17. 17.If 22 July is a Friday, what day of the week is 13 August? (a) Monday (b) Friday (c) Sunday (d) Saturday
  18. 18.If 5 July is a Wednesday, what day of the week is 15 July? (a) Sunday (b) Friday (c) Monday (d) Saturday
  19. 19.If 2 December is a Friday, what day of the week is 17 December? (a) Monday (b) Sunday (c) Friday (d) Saturday
  20. 20.If 11 October is a Tuesday, what day of the week is 23 October? (a) Tuesday (b) Sunday (c) Monday (d) Saturday
  21. 21.Today is Monday. What day of the week will it be after 65 days? (a) Wednesday (b) Tuesday (c) Friday (d) Thursday
  22. 22.If 12 January is a Sunday, what day of the week is 23 January? (a) Wednesday (b) Friday (c) Thursday (d) Saturday
  23. 23.Today is Friday. What day of the week will it be after 41 days? (a) Wednesday (b) Friday (c) Thursday (d) Saturday
  24. 24.Today is Wednesday. What day of the week will it be after 35 days? (a) Thursday (b) Friday (c) Tuesday (d) Wednesday
  25. 25.If 24 August is a Tuesday, what day of the week is 3 September? (a) Saturday (b) Thursday (c) Friday (d) Sunday
  26. 26.Today is Thursday. What day of the week will it be after 68 days? (a) Wednesday (b) Monday (c) Thursday (d) Tuesday
  27. 27.If 18 June is a Saturday, what day of the week is 15 July? (a) Thursday (b) Saturday (c) Friday (d) Sunday
  28. 28.If 13 August is a Tuesday, what day of the week is 26 August? (a) Sunday (b) Wednesday (c) Tuesday (d) Monday
  29. 29.If 18 January is a Thursday, what day of the week is 18 February? (a) Sunday (b) Tuesday (c) Saturday (d) Monday
  30. 30.If 2 December is a Saturday, what day of the week is 11 December? (a) Wednesday (b) Tuesday (c) Sunday (d) Monday
  31. 31.If 11 August is a Wednesday, what day of the week is 25 August? (a) Friday (b) Thursday (c) Tuesday (d) Wednesday
  32. 32.If 25 September is a Saturday, what day of the week is 19 October? (a) Tuesday (b) Thursday (c) Wednesday (d) Monday
  33. 33.If 5 October is a Sunday, what day of the week is 21 October? (a) Wednesday (b) Monday (c) Thursday (d) Tuesday
  34. 34.If 14 March is a Saturday, what day of the week is 24 March? (a) Thursday (b) Wednesday (c) Tuesday (d) Monday
  35. 35.If 5 August is a Monday, what day of the week is 19 August? (a) Wednesday (b) Monday (c) Sunday (d) Tuesday
  36. 36.If 11 August is a Tuesday, what day of the week is 20 August? (a) Wednesday (b) Saturday (c) Thursday (d) Friday
  37. 37.Today is Saturday. What day of the week will it be after 87 days? (a) Monday (b) Thursday (c) Wednesday (d) Tuesday
  38. 38.If 3 March is a Tuesday, what day of the week is 14 March? (a) Saturday (b) Friday (c) Sunday (d) Monday
  39. 39.Today is Monday. What day of the week will it be after 36 days? (a) Thursday (b) Monday (c) Tuesday (d) Wednesday
  40. 40.Today is Sunday. What day of the week will it be after 35 days? (a) Monday (b) Saturday (c) Sunday (d) Tuesday

Answer key

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

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