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Calendar Worksheet for Maths Olympiad

Maths Olympiad topic 12: Calendar puzzles · Set 25 · 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 11 April is a Thursday, what day of the week is 19 May? (a) Monday (b) Saturday (c) Tuesday (d) Sunday
  2. 2.Today is Saturday. What day of the week will it be after 26 days? (a) Friday (b) Thursday (c) Wednesday (d) Saturday
  3. 3.If 15 June is a Tuesday, what day of the week is 9 July? (a) Saturday (b) Sunday (c) Friday (d) Thursday
  4. 4.If 28 May is a Sunday, what day of the week is 2 June? (a) Thursday (b) Sunday (c) Saturday (d) Friday
  5. 5.If 15 August is a Friday, what day of the week is 5 September? (a) Sunday (b) Thursday (c) Saturday (d) Friday
  6. 6.Today is Tuesday. What day of the week will it be after 36 days? (a) Thursday (b) Wednesday (c) Friday (d) Tuesday
  7. 7.If 14 October is a Sunday, what day of the week is 4 November? (a) Tuesday (b) Monday (c) Saturday (d) Sunday
  8. 8.If 25 January is a Friday, what day of the week is 10 February? (a) Saturday (b) Sunday (c) Tuesday (d) Monday
  9. 9.Today is Tuesday. What day of the week will it be after 13 days? (a) Tuesday (b) Sunday (c) Monday (d) Wednesday
  10. 10.If 19 July is a Friday, what day of the week is 3 August? (a) Friday (b) Monday (c) Saturday (d) Sunday
  11. 11.If 3 December is a Tuesday, what day of the week is 16 December? (a) Wednesday (b) Tuesday (c) Sunday (d) Monday
  12. 12.Today is Wednesday. What day of the week will it be after 40 days? (a) Monday (b) Wednesday (c) Sunday (d) Tuesday
  13. 13.If 31 October is a Wednesday, what day of the week is 17 November? (a) Sunday (b) Saturday (c) Monday (d) Friday
  14. 14.Today is Saturday. What day of the week will it be after 41 days? (a) Sunday (b) Friday (c) Saturday (d) Thursday
  15. 15.If 1 May is a Tuesday, what day of the week is 16 May? (a) Wednesday (b) Friday (c) Tuesday (d) Thursday
  16. 16.If 14 May is a Tuesday, what day of the week is 14 June? (a) Saturday (b) Friday (c) Thursday (d) Sunday
  17. 17.If 8 March is a Wednesday, what day of the week is 24 March? (a) Saturday (b) Friday (c) Thursday (d) Sunday
  18. 18.If 1 August is a Monday, what day of the week is 11 August? (a) Thursday (b) Wednesday (c) Friday (d) Saturday
  19. 19.Today is Friday. What day of the week will it be after 85 days? (a) Friday (b) Saturday (c) Sunday (d) Monday
  20. 20.If 1 December is a Thursday, what day of the week is 12 December? (a) Sunday (b) Tuesday (c) Monday (d) Wednesday
  21. 21.If 7 August is a Friday, what day of the week is 21 August? (a) Thursday (b) Saturday (c) Friday (d) Sunday
  22. 22.If 22 May is a Monday, what day of the week is 5 June? (a) Wednesday (b) Monday (c) Tuesday (d) Sunday
  23. 23.If 21 October is a Tuesday, what day of the week is 6 November? (a) Saturday (b) Wednesday (c) Thursday (d) Friday
  24. 24.Today is Monday. What day of the week will it be after 85 days? (a) Thursday (b) Monday (c) Wednesday (d) Tuesday
  25. 25.Today is Saturday. What day of the week will it be after 11 days? (a) Thursday (b) Tuesday (c) Friday (d) Wednesday
  26. 26.If 10 October is a Saturday, what day of the week is 25 October? (a) Saturday (b) Monday (c) Sunday (d) Tuesday
  27. 27.Today is Saturday. What day of the week will it be after 77 days? (a) Sunday (b) Monday (c) Friday (d) Saturday
  28. 28.If 16 July is a Thursday, what day of the week is 18 August? (a) Tuesday (b) Monday (c) Wednesday (d) Thursday
  29. 29.Today is Friday. What day of the week will it be after 51 days? (a) Saturday (b) Monday (c) Sunday (d) Tuesday
  30. 30.If 6 July is a Thursday, what day of the week is 21 July? (a) Sunday (b) Saturday (c) Friday (d) Thursday
  31. 31.Today is Wednesday. What day of the week will it be after 14 days? (a) Tuesday (b) Friday (c) Wednesday (d) Thursday
  32. 32.If 4 January is a Sunday, what day of the week is 17 January? (a) Saturday (b) Monday (c) Friday (d) Sunday
  33. 33.If 7 October is a Monday, what day of the week is 23 October? (a) Friday (b) Tuesday (c) Thursday (d) Wednesday
  34. 34.Today is Saturday. What day of the week will it be after 16 days? (a) Tuesday (b) Monday (c) Sunday (d) Wednesday
  35. 35.If 24 July is a Tuesday, what day of the week is 4 August? (a) Saturday (b) Friday (c) Sunday (d) Monday
  36. 36.If 14 October is a Tuesday, what day of the week is 26 October? (a) Monday (b) Saturday (c) Sunday (d) Tuesday
  37. 37.If 4 May is a Tuesday, what day of the week is 17 May? (a) Sunday (b) Monday (c) Tuesday (d) Wednesday
  38. 38.If 4 October is a Sunday, what day of the week is 19 October? (a) Wednesday (b) Tuesday (c) Sunday (d) Monday
  39. 39.If 7 March is a Wednesday, what day of the week is 19 March? (a) Wednesday (b) Tuesday (c) Monday (d) Sunday
  40. 40.If 19 May is a Monday, what day of the week is 14 June? (a) Monday (b) Saturday (c) Friday (d) Sunday

Answer key

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

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