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Calendar Worksheet for Maths Olympiad

Maths Olympiad topic 12: Calendar puzzles · Set 250 · 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 2 October is a Friday, what day of the week is 11 October? (a) Saturday (b) Tuesday (c) Monday (d) Sunday
  2. 2.Today is Saturday. What day of the week will it be after 79 days? (a) Wednesday (b) Monday (c) Sunday (d) Tuesday
  3. 3.If 9 March is a Monday, what day of the week is 25 March? (a) Thursday (b) Wednesday (c) Friday (d) Tuesday
  4. 4.Today is Thursday. What day of the week will it be after 22 days? (a) Saturday (b) Thursday (c) Sunday (d) Friday
  5. 5.If 30 October is a Friday, what day of the week is 11 November? (a) Friday (b) Thursday (c) Tuesday (d) Wednesday
  6. 6.If 7 May is a Saturday, what day of the week is 17 May? (a) Wednesday (b) Thursday (c) Tuesday (d) Monday
  7. 7.Today is Saturday. What day of the week will it be after 21 days? (a) Saturday (b) Friday (c) Monday (d) Sunday
  8. 8.If 27 January is a Tuesday, what day of the week is 10 February? (a) Monday (b) Wednesday (c) Tuesday (d) Thursday
  9. 9.Today is Saturday. What day of the week will it be after 95 days? (a) Friday (b) Wednesday (c) Thursday (d) Tuesday
  10. 10.Today is Monday. What day of the week will it be after 54 days? (a) Monday (b) Saturday (c) Sunday (d) Friday
  11. 11.If 5 March is a Thursday, what day of the week is 21 March? (a) Sunday (b) Friday (c) Monday (d) Saturday
  12. 12.If 15 October is a Tuesday, what day of the week is 3 November? (a) Tuesday (b) Monday (c) Saturday (d) Sunday
  13. 13.If 3 May is a Saturday, what day of the week is 13 May? (a) Thursday (b) Tuesday (c) Monday (d) Wednesday
  14. 14.Today is Thursday. What day of the week will it be after 32 days? (a) Wednesday (b) Sunday (c) Tuesday (d) Monday
  15. 15.If 12 October is a Monday, what day of the week is 28 October? (a) Tuesday (b) Wednesday (c) Thursday (d) Friday
  16. 16.If 23 September is a Tuesday, what day of the week is 17 October? (a) Thursday (b) Sunday (c) Saturday (d) Friday
  17. 17.Today is Sunday. What day of the week will it be after 49 days? (a) Tuesday (b) Saturday (c) Monday (d) Sunday
  18. 18.Today is Friday. What day of the week will it be after 50 days? (a) Sunday (b) Friday (c) Monday (d) Saturday
  19. 19.If 4 December is a Friday, what day of the week is 16 December? (a) Friday (b) Thursday (c) Tuesday (d) Wednesday
  20. 20.Today is Thursday. What day of the week will it be after 77 days? (a) Friday (b) Thursday (c) Wednesday (d) Saturday
  21. 21.If 2 March is a Thursday, what day of the week is 16 March? (a) Friday (b) Wednesday (c) Saturday (d) Thursday
  22. 22.If 5 December is a Friday, what day of the week is 20 December? (a) Monday (b) Sunday (c) Saturday (d) Friday
  23. 23.Today is Friday. What day of the week will it be after 30 days? (a) Monday (b) Sunday (c) Tuesday (d) Saturday
  24. 24.If 15 May is a Friday, what day of the week is 24 May? (a) Tuesday (b) Saturday (c) Monday (d) Sunday
  25. 25.If 10 October is a Saturday, what day of the week is 25 October? (a) Monday (b) Sunday (c) Tuesday (d) Saturday
  26. 26.Today is Tuesday. What day of the week will it be after 72 days? (a) Wednesday (b) Saturday (c) Thursday (d) Friday
  27. 27.If 20 August is a Friday, what day of the week is 1 September? (a) Tuesday (b) Wednesday (c) Friday (d) Thursday
  28. 28.Today is Thursday. What day of the week will it be after 97 days? (a) Thursday (b) Friday (c) Tuesday (d) Wednesday
  29. 29.Today is Monday. What day of the week will it be after 84 days? (a) Wednesday (b) Tuesday (c) Monday (d) Sunday
  30. 30.If 4 December is a Wednesday, what day of the week is 14 December? (a) Sunday (b) Friday (c) Monday (d) Saturday
  31. 31.Today is Wednesday. What day of the week will it be after 21 days? (a) Tuesday (b) Thursday (c) Friday (d) Wednesday
  32. 32.If 11 March is a Wednesday, what day of the week is 7 April? (a) Tuesday (b) Monday (c) Thursday (d) Wednesday
  33. 33.If 11 December is a Monday, what day of the week is 25 December? (a) Sunday (b) Tuesday (c) Monday (d) Wednesday
  34. 34.Today is Monday. What day of the week will it be after 62 days? (a) Saturday (b) Sunday (c) Tuesday (d) Monday
  35. 35.If 3 January is a Saturday, what day of the week is 11 January? (a) Tuesday (b) Saturday (c) Sunday (d) Monday
  36. 36.If 12 October is a Friday, what day of the week is 27 October? (a) Sunday (b) Monday (c) Saturday (d) Friday
  37. 37.If 14 January is a Wednesday, what day of the week is 25 January? (a) Tuesday (b) Sunday (c) Saturday (d) Monday
  38. 38.If 21 January is a Tuesday, what day of the week is 4 February? (a) Thursday (b) Tuesday (c) Wednesday (d) Monday
  39. 39.Today is Monday. What day of the week will it be after 40 days? (a) Monday (b) Friday (c) Sunday (d) Saturday
  40. 40.If 22 March is a Monday, what day of the week is 16 April? (a) Thursday (b) Saturday (c) Sunday (d) Friday

Answer key

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

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