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Calendar Worksheet for Maths Olympiad

Maths Olympiad topic 12: Calendar puzzles · Set 429 · 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 Thursday. What day of the week will it be after 77 days? (a) Friday (b) Wednesday (c) Saturday (d) Thursday
  2. 2.Today is Thursday. What day of the week will it be after 73 days? (a) Saturday (b) Sunday (c) Monday (d) Tuesday
  3. 3.If 10 May is a Monday, what day of the week is 16 June? (a) Wednesday (b) Friday (c) Thursday (d) Tuesday
  4. 4.Today is Friday. What day of the week will it be after 82 days? (a) Friday (b) Tuesday (c) Wednesday (d) Thursday
  5. 5.Today is Wednesday. What day of the week will it be after 75 days? (a) Tuesday (b) Monday (c) Wednesday (d) Sunday
  6. 6.Today is Thursday. What day of the week will it be after 34 days? (a) Tuesday (b) Wednesday (c) Thursday (d) Friday
  7. 7.If 18 March is a Monday, what day of the week is 4 April? (a) Thursday (b) Saturday (c) Wednesday (d) Friday
  8. 8.If 15 July is a Monday, what day of the week is 17 August? (a) Sunday (b) Saturday (c) Monday (d) Friday
  9. 9.If 6 March is a Thursday, what day of the week is 14 March? (a) Friday (b) Sunday (c) Thursday (d) Saturday
  10. 10.If 18 June is a Thursday, what day of the week is 13 July? (a) Wednesday (b) Tuesday (c) Monday (d) Sunday
  11. 11.If 14 March is a Friday, what day of the week is 24 March? (a) Monday (b) Wednesday (c) Sunday (d) Tuesday
  12. 12.If 12 July is a Friday, what day of the week is 24 July? (a) Tuesday (b) Friday (c) Thursday (d) Wednesday
  13. 13.If 20 July is a Monday, what day of the week is 10 August? (a) Tuesday (b) Sunday (c) Monday (d) Wednesday
  14. 14.If 17 July is a Sunday, what day of the week is 14 August? (a) Sunday (b) Tuesday (c) Monday (d) Saturday
  15. 15.Today is Sunday. What day of the week will it be after 72 days? (a) Wednesday (b) Thursday (c) Tuesday (d) Monday
  16. 16.If 15 May is a Saturday, what day of the week is 5 June? (a) Saturday (b) Monday (c) Sunday (d) Friday
  17. 17.If 10 March is a Wednesday, what day of the week is 21 March? (a) Tuesday (b) Sunday (c) Saturday (d) Monday
  18. 18.If 1 December is a Tuesday, what day of the week is 17 December? (a) Saturday (b) Thursday (c) Wednesday (d) Friday
  19. 19.If 15 December is a Tuesday, what day of the week is 26 December? (a) Friday (b) Saturday (c) Sunday (d) Monday
  20. 20.If 18 September is a Saturday, what day of the week is 1 October? (a) Friday (b) Sunday (c) Saturday (d) Thursday
  21. 21.If 15 October is a Thursday, what day of the week is 24 October? (a) Sunday (b) Friday (c) Saturday (d) Monday
  22. 22.Today is Sunday. What day of the week will it be after 26 days? (a) Saturday (b) Friday (c) Thursday (d) Sunday
  23. 23.If 10 March is a Thursday, what day of the week is 20 March? (a) Monday (b) Tuesday (c) Saturday (d) Sunday
  24. 24.If 26 May is a Saturday, what day of the week is 13 June? (a) Wednesday (b) Thursday (c) Tuesday (d) Friday
  25. 25.Today is Monday. What day of the week will it be after 68 days? (a) Monday (b) Sunday (c) Friday (d) Saturday
  26. 26.Today is Thursday. What day of the week will it be after 12 days? (a) Tuesday (b) Monday (c) Thursday (d) Wednesday
  27. 27.Today is Friday. What day of the week will it be after 68 days? (a) Friday (b) Thursday (c) Wednesday (d) Tuesday
  28. 28.Today is Sunday. What day of the week will it be after 68 days? (a) Saturday (b) Sunday (c) Thursday (d) Friday
  29. 29.Today is Wednesday. What day of the week will it be after 58 days? (a) Saturday (b) Sunday (c) Friday (d) Thursday
  30. 30.Today is Thursday. What day of the week will it be after 24 days? (a) Tuesday (b) Sunday (c) Monday (d) Saturday
  31. 31.Today is Sunday. What day of the week will it be after 27 days? (a) Monday (b) Saturday (c) Sunday (d) Friday
  32. 32.If 12 March is a Sunday, what day of the week is 28 March? (a) Tuesday (b) Wednesday (c) Thursday (d) Monday
  33. 33.If 3 May is a Monday, what day of the week is 13 May? (a) Friday (b) Thursday (c) Saturday (d) Wednesday
  34. 34.If 12 September is a Wednesday, what day of the week is 18 October? (a) Thursday (b) Friday (c) Wednesday (d) Saturday
  35. 35.If 11 August is a Tuesday, what day of the week is 23 August? (a) Saturday (b) Monday (c) Tuesday (d) Sunday
  36. 36.If 9 March is a Saturday, what day of the week is 19 March? (a) Wednesday (b) Thursday (c) Monday (d) Tuesday
  37. 37.If 23 September is a Friday, what day of the week is 8 October? (a) Monday (b) Saturday (c) Sunday (d) Friday
  38. 38.If 4 October is a Monday, what day of the week is 12 October? (a) Thursday (b) Wednesday (c) Monday (d) Tuesday
  39. 39.If 30 September is a Wednesday, what day of the week is 19 October? (a) Tuesday (b) Monday (c) Wednesday (d) Sunday
  40. 40.Today is Friday. What day of the week will it be after 79 days? (a) Saturday (b) Sunday (c) Tuesday (d) Monday

Answer key

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

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