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Calendar Worksheet for Maths Olympiad

Maths Olympiad topic 12: Calendar puzzles · Set 150 · 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 Monday. What day of the week will it be after 55 days? (a) Sunday (b) Saturday (c) Tuesday (d) Monday
  2. 2.Today is Friday. What day of the week will it be after 52 days? (a) Tuesday (b) Wednesday (c) Sunday (d) Monday
  3. 3.If 15 August is a Wednesday, what day of the week is 30 August? (a) Wednesday (b) Saturday (c) Thursday (d) Friday
  4. 4.If 2 May is a Tuesday, what day of the week is 12 May? (a) Friday (b) Sunday (c) Thursday (d) Saturday
  5. 5.If 30 August is a Friday, what day of the week is 10 September? (a) Thursday (b) Tuesday (c) Monday (d) Wednesday
  6. 6.If 18 April is a Monday, what day of the week is 16 May? (a) Tuesday (b) Monday (c) Wednesday (d) Sunday
  7. 7.If 3 January is a Friday, what day of the week is 17 January? (a) Thursday (b) Friday (c) Saturday (d) Sunday
  8. 8.If 9 January is a Saturday, what day of the week is 23 January? (a) Friday (b) Saturday (c) Monday (d) Sunday
  9. 9.If 29 March is a Saturday, what day of the week is 6 April? (a) Monday (b) Tuesday (c) Sunday (d) Saturday
  10. 10.Today is Tuesday. What day of the week will it be after 17 days? (a) Saturday (b) Friday (c) Sunday (d) Thursday
  11. 11.If 4 August is a Tuesday, what day of the week is 15 August? (a) Saturday (b) Sunday (c) Monday (d) Friday
  12. 12.Today is Sunday. What day of the week will it be after 47 days? (a) Thursday (b) Saturday (c) Friday (d) Sunday
  13. 13.Today is Friday. What day of the week will it be after 72 days? (a) Saturday (b) Monday (c) Tuesday (d) Sunday
  14. 14.If 29 August is a Wednesday, what day of the week is 8 September? (a) Sunday (b) Monday (c) Friday (d) Saturday
  15. 15.If 13 March is a Saturday, what day of the week is 15 April? (a) Thursday (b) Saturday (c) Wednesday (d) Friday
  16. 16.Today is Saturday. What day of the week will it be after 10 days? (a) Tuesday (b) Wednesday (c) Monday (d) Thursday
  17. 17.If 14 July is a Saturday, what day of the week is 22 July? (a) Sunday (b) Monday (c) Saturday (d) Tuesday
  18. 18.If 13 October is a Tuesday, what day of the week is 29 October? (a) Wednesday (b) Thursday (c) Saturday (d) Friday
  19. 19.If 1 August is a Saturday, what day of the week is 10 August? (a) Tuesday (b) Sunday (c) Monday (d) Wednesday
  20. 20.If 9 August is a Tuesday, what day of the week is 20 August? (a) Sunday (b) Monday (c) Saturday (d) Friday
  21. 21.If 9 July is a Wednesday, what day of the week is 21 July? (a) Tuesday (b) Monday (c) Wednesday (d) Sunday
  22. 22.If 18 March is a Thursday, what day of the week is 2 April? (a) Thursday (b) Saturday (c) Sunday (d) Friday
  23. 23.Today is Thursday. What day of the week will it be after 91 days? (a) Wednesday (b) Friday (c) Thursday (d) Saturday
  24. 24.Today is Monday. What day of the week will it be after 81 days? (a) Thursday (b) Saturday (c) Sunday (d) Friday
  25. 25.Today is Thursday. What day of the week will it be after 45 days? (a) Tuesday (b) Monday (c) Saturday (d) Sunday
  26. 26.Today is Wednesday. What day of the week will it be after 35 days? (a) Friday (b) Tuesday (c) Wednesday (d) Thursday
  27. 27.If 1 July is a Friday, what day of the week is 14 July? (a) Thursday (b) Friday (c) Saturday (d) Wednesday
  28. 28.If 8 December is a Tuesday, what day of the week is 18 December? (a) Saturday (b) Friday (c) Sunday (d) Thursday
  29. 29.If 8 December is a Sunday, what day of the week is 20 December? (a) Sunday (b) Saturday (c) Thursday (d) Friday
  30. 30.Today is Saturday. What day of the week will it be after 24 days? (a) Tuesday (b) Wednesday (c) Thursday (d) Monday
  31. 31.Today is Friday. What day of the week will it be after 62 days? (a) Saturday (b) Friday (c) Wednesday (d) Thursday
  32. 32.Today is Monday. What day of the week will it be after 91 days? (a) Wednesday (b) Sunday (c) Monday (d) Tuesday
  33. 33.Today is Monday. What day of the week will it be after 12 days? (a) Monday (b) Sunday (c) Saturday (d) Friday
  34. 34.If 16 July is a Monday, what day of the week is 20 August? (a) Monday (b) Tuesday (c) Sunday (d) Wednesday
  35. 35.If 15 August is a Sunday, what day of the week is 31 August? (a) Tuesday (b) Wednesday (c) Monday (d) Thursday
  36. 36.Today is Thursday. What day of the week will it be after 14 days? (a) Friday (b) Saturday (c) Wednesday (d) Thursday
  37. 37.If 9 January is a Friday, what day of the week is 19 January? (a) Tuesday (b) Sunday (c) Wednesday (d) Monday
  38. 38.If 21 July is a Sunday, what day of the week is 6 August? (a) Wednesday (b) Thursday (c) Tuesday (d) Monday
  39. 39.Today is Monday. What day of the week will it be after 61 days? (a) Monday (b) Saturday (c) Friday (d) Sunday
  40. 40.If 24 April is a Wednesday, what day of the week is 6 May? (a) Tuesday (b) Sunday (c) Wednesday (d) Monday

Answer key

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

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