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Calendar Worksheet for Maths Olympiad

Maths Olympiad topic 12: Calendar puzzles · Set 171 · 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 26 November is a Tuesday, what day of the week is 8 December? (a) Tuesday (b) Monday (c) Sunday (d) Saturday
  2. 2.If 5 December is a Monday, what day of the week is 18 December? (a) Monday (b) Saturday (c) Tuesday (d) Sunday
  3. 3.Today is Wednesday. What day of the week will it be after 20 days? (a) Monday (b) Tuesday (c) Thursday (d) Wednesday
  4. 4.Today is Friday. What day of the week will it be after 33 days? (a) Tuesday (b) Wednesday (c) Thursday (d) Friday
  5. 5.If 7 January is a Thursday, what day of the week is 20 January? (a) Wednesday (b) Tuesday (c) Thursday (d) Friday
  6. 6.If 13 July is a Monday, what day of the week is 28 July? (a) Tuesday (b) Wednesday (c) Thursday (d) Monday
  7. 7.Today is Friday. What day of the week will it be after 50 days? (a) Friday (b) Saturday (c) Sunday (d) Monday
  8. 8.If 1 March is a Sunday, what day of the week is 14 March? (a) Monday (b) Saturday (c) Friday (d) Sunday
  9. 9.Today is Thursday. What day of the week will it be after 31 days? (a) Sunday (b) Monday (c) Saturday (d) Tuesday
  10. 10.Today is Saturday. What day of the week will it be after 85 days? (a) Tuesday (b) Monday (c) Saturday (d) Sunday
  11. 11.If 21 September is a Friday, what day of the week is 12 October? (a) Saturday (b) Thursday (c) Sunday (d) Friday
  12. 12.If 15 October is a Saturday, what day of the week is 29 October? (a) Saturday (b) Sunday (c) Monday (d) Friday
  13. 13.If 9 January is a Monday, what day of the week is 25 January? (a) Tuesday (b) Wednesday (c) Thursday (d) Friday
  14. 14.If 13 October is a Saturday, what day of the week is 27 October? (a) Sunday (b) Saturday (c) Friday (d) Monday
  15. 15.If 8 May is a Friday, what day of the week is 16 May? (a) Friday (b) Saturday (c) Sunday (d) Monday
  16. 16.If 3 December is a Sunday, what day of the week is 15 December? (a) Saturday (b) Sunday (c) Friday (d) Thursday
  17. 17.If 5 May is a Thursday, what day of the week is 14 May? (a) Friday (b) Sunday (c) Saturday (d) Monday
  18. 18.If 6 December is a Saturday, what day of the week is 16 December? (a) Monday (b) Wednesday (c) Thursday (d) Tuesday
  19. 19.Today is Monday. What day of the week will it be after 55 days? (a) Saturday (b) Sunday (c) Monday (d) Tuesday
  20. 20.Today is Tuesday. What day of the week will it be after 18 days? (a) Friday (b) Sunday (c) Monday (d) Saturday
  21. 21.Today is Saturday. What day of the week will it be after 80 days? (a) Monday (b) Thursday (c) Tuesday (d) Wednesday
  22. 22.If 4 March is a Wednesday, what day of the week is 15 March? (a) Tuesday (b) Sunday (c) Saturday (d) Monday
  23. 23.Today is Tuesday. What day of the week will it be after 53 days? (a) Sunday (b) Monday (c) Friday (d) Saturday
  24. 24.If 30 May is a Monday, what day of the week is 1 June? (a) Thursday (b) Friday (c) Wednesday (d) Tuesday
  25. 25.Today is Thursday. What day of the week will it be after 68 days? (a) Wednesday (b) Thursday (c) Tuesday (d) Monday
  26. 26.If 26 March is a Monday, what day of the week is 16 April? (a) Tuesday (b) Wednesday (c) Monday (d) Sunday
  27. 27.Today is Saturday. What day of the week will it be after 16 days? (a) Sunday (b) Wednesday (c) Tuesday (d) Monday
  28. 28.Today is Saturday. What day of the week will it be after 19 days? (a) Thursday (b) Friday (c) Saturday (d) Wednesday
  29. 29.If 12 May is a Saturday, what day of the week is 2 June? (a) Monday (b) Friday (c) Saturday (d) Sunday
  30. 30.Today is Sunday. What day of the week will it be after 67 days? (a) Wednesday (b) Friday (c) Thursday (d) Saturday
  31. 31.If 24 April is a Monday, what day of the week is 2 May? (a) Wednesday (b) Thursday (c) Tuesday (d) Monday
  32. 32.If 11 July is a Saturday, what day of the week is 23 July? (a) Wednesday (b) Thursday (c) Saturday (d) Friday
  33. 33.If 3 July is a Sunday, what day of the week is 13 July? (a) Wednesday (b) Tuesday (c) Thursday (d) Friday
  34. 34.If 15 January is a Saturday, what day of the week is 6 February? (a) Monday (b) Sunday (c) Tuesday (d) Saturday
  35. 35.If 19 October is a Thursday, what day of the week is 5 November? (a) Tuesday (b) Saturday (c) Monday (d) Sunday
  36. 36.If 5 October is a Thursday, what day of the week is 15 October? (a) Monday (b) Tuesday (c) Sunday (d) Saturday
  37. 37.Today is Thursday. What day of the week will it be after 76 days? (a) Thursday (b) Friday (c) Tuesday (d) Wednesday
  38. 38.Today is Sunday. What day of the week will it be after 70 days? (a) Sunday (b) Tuesday (c) Monday (d) Saturday
  39. 39.Today is Friday. What day of the week will it be after 87 days? (a) Sunday (b) Tuesday (c) Monday (d) Wednesday
  40. 40.If 22 January is a Friday, what day of the week is 19 February? (a) Friday (b) Saturday (c) Sunday (d) Thursday

Answer key

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

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