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Calendar Worksheet for Maths Olympiad

Maths Olympiad topic 12: Calendar puzzles · Set 646 · 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 23 May is a Tuesday, what day of the week is 11 June? (a) Saturday (b) Tuesday (c) Monday (d) Sunday
  2. 2.If 11 January is a Monday, what day of the week is 13 February? (a) Saturday (b) Friday (c) Sunday (d) Monday
  3. 3.Today is Friday. What day of the week will it be after 79 days? (a) Saturday (b) Sunday (c) Tuesday (d) Monday
  4. 4.If 25 July is a Wednesday, what day of the week is 20 August? (a) Wednesday (b) Sunday (c) Monday (d) Tuesday
  5. 5.If 15 August is a Thursday, what day of the week is 28 August? (a) Tuesday (b) Friday (c) Wednesday (d) Thursday
  6. 6.If 1 August is a Monday, what day of the week is 13 August? (a) Friday (b) Saturday (c) Monday (d) Sunday
  7. 7.If 4 May is a Wednesday, what day of the week is 18 May? (a) Thursday (b) Wednesday (c) Tuesday (d) Friday
  8. 8.If 31 May is a Wednesday, what day of the week is 18 June? (a) Sunday (b) Saturday (c) Tuesday (d) Monday
  9. 9.If 20 March is a Thursday, what day of the week is 9 April? (a) Tuesday (b) Friday (c) Wednesday (d) Thursday
  10. 10.If 2 December is a Wednesday, what day of the week is 13 December? (a) Sunday (b) Tuesday (c) Monday (d) Saturday
  11. 11.If 9 July is a Saturday, what day of the week is 22 July? (a) Thursday (b) Saturday (c) Sunday (d) Friday
  12. 12.If 5 July is a Monday, what day of the week is 14 July? (a) Friday (b) Wednesday (c) Thursday (d) Tuesday
  13. 13.If 11 June is a Wednesday, what day of the week is 13 July? (a) Sunday (b) Tuesday (c) Saturday (d) Monday
  14. 14.If 13 January is a Sunday, what day of the week is 5 February? (a) Monday (b) Wednesday (c) Tuesday (d) Thursday
  15. 15.If 2 December is a Sunday, what day of the week is 13 December? (a) Wednesday (b) Friday (c) Saturday (d) Thursday
  16. 16.If 10 October is a Monday, what day of the week is 26 October? (a) Tuesday (b) Thursday (c) Friday (d) Wednesday
  17. 17.Today is Friday. What day of the week will it be after 45 days? (a) Wednesday (b) Monday (c) Tuesday (d) Sunday
  18. 18.Today is Monday. What day of the week will it be after 64 days? (a) Tuesday (b) Monday (c) Wednesday (d) Thursday
  19. 19.If 23 September is a Saturday, what day of the week is 18 October? (a) Friday (b) Wednesday (c) Tuesday (d) Thursday
  20. 20.If 3 December is a Tuesday, what day of the week is 18 December? (a) Wednesday (b) Thursday (c) Friday (d) Tuesday
  21. 21.If 15 April is a Tuesday, what day of the week is 17 May? (a) Saturday (b) Sunday (c) Monday (d) Friday
  22. 22.If 11 March is a Wednesday, what day of the week is 9 April? (a) Wednesday (b) Saturday (c) Thursday (d) Friday
  23. 23.If 15 April is a Monday, what day of the week is 19 May? (a) Monday (b) Saturday (c) Tuesday (d) Sunday
  24. 24.If 13 July is a Friday, what day of the week is 29 July? (a) Saturday (b) Sunday (c) Tuesday (d) Monday
  25. 25.If 4 January is a Friday, what day of the week is 19 January? (a) Saturday (b) Friday (c) Sunday (d) Monday
  26. 26.If 12 March is a Tuesday, what day of the week is 21 March? (a) Saturday (b) Wednesday (c) Friday (d) Thursday
  27. 27.If 12 May is a Saturday, what day of the week is 25 May? (a) Thursday (b) Friday (c) Saturday (d) Sunday
  28. 28.If 3 May is a Monday, what day of the week is 11 May? (a) Wednesday (b) Thursday (c) Monday (d) Tuesday
  29. 29.If 3 August is a Tuesday, what day of the week is 17 August? (a) Monday (b) Wednesday (c) Tuesday (d) Thursday
  30. 30.If 4 March is a Monday, what day of the week is 17 March? (a) Sunday (b) Monday (c) Tuesday (d) Saturday
  31. 31.Today is Monday. What day of the week will it be after 80 days? (a) Wednesday (b) Saturday (c) Friday (d) Thursday
  32. 32.If 26 June is a Monday, what day of the week is 15 July? (a) Friday (b) Saturday (c) Monday (d) Sunday
  33. 33.Today is Thursday. What day of the week will it be after 11 days? (a) Wednesday (b) Sunday (c) Tuesday (d) Monday
  34. 34.If 27 July is a Sunday, what day of the week is 6 August? (a) Tuesday (b) Friday (c) Wednesday (d) Thursday
  35. 35.If 22 April is a Monday, what day of the week is 10 May? (a) Sunday (b) Thursday (c) Friday (d) Saturday
  36. 36.If 18 June is a Tuesday, what day of the week is 9 July? (a) Monday (b) Thursday (c) Tuesday (d) Wednesday
  37. 37.Today is Monday. What day of the week will it be after 25 days? (a) Thursday (b) Saturday (c) Friday (d) Sunday
  38. 38.If 14 January is a Friday, what day of the week is 24 January? (a) Monday (b) Sunday (c) Wednesday (d) Tuesday
  39. 39.Today is Saturday. What day of the week will it be after 31 days? (a) Monday (b) Tuesday (c) Thursday (d) Wednesday
  40. 40.If 6 January is a Wednesday, what day of the week is 17 January? (a) Sunday (b) Tuesday (c) Saturday (d) Monday

Answer key

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

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