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Calendar Worksheet for Maths Olympiad

Maths Olympiad topic 12: Calendar puzzles · Set 97 · 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 Thursday. What day of the week will it be after 29 days? (a) Friday (b) Thursday (c) Sunday (d) Saturday
  2. 2.If 10 July is a Thursday, what day of the week is 18 July? (a) Friday (b) Sunday (c) Saturday (d) Thursday
  3. 3.If 25 March is a Thursday, what day of the week is 19 April? (a) Sunday (b) Tuesday (c) Monday (d) Wednesday
  4. 4.If 16 October is a Thursday, what day of the week is 4 November? (a) Monday (b) Tuesday (c) Thursday (d) Wednesday
  5. 5.Today is Monday. What day of the week will it be after 41 days? (a) Saturday (b) Monday (c) Sunday (d) Tuesday
  6. 6.Today is Thursday. What day of the week will it be after 10 days? (a) Monday (b) Saturday (c) Tuesday (d) Sunday
  7. 7.Today is Sunday. What day of the week will it be after 80 days? (a) Tuesday (b) Friday (c) Wednesday (d) Thursday
  8. 8.If 14 December is a Tuesday, what day of the week is 23 December? (a) Saturday (b) Thursday (c) Friday (d) Wednesday
  9. 9.If 28 March is a Thursday, what day of the week is 1 April? (a) Wednesday (b) Tuesday (c) Sunday (d) Monday
  10. 10.Today is Friday. What day of the week will it be after 38 days? (a) Tuesday (b) Wednesday (c) Monday (d) Sunday
  11. 11.Today is Monday. What day of the week will it be after 67 days? (a) Sunday (b) Friday (c) Thursday (d) Saturday
  12. 12.Today is Tuesday. What day of the week will it be after 13 days? (a) Monday (b) Sunday (c) Tuesday (d) Wednesday
  13. 13.If 27 November is a Thursday, what day of the week is 13 December? (a) Monday (b) Friday (c) Sunday (d) Saturday
  14. 14.If 5 October is a Saturday, what day of the week is 18 October? (a) Thursday (b) Sunday (c) Saturday (d) Friday
  15. 15.If 31 January is a Monday, what day of the week is 19 February? (a) Sunday (b) Friday (c) Saturday (d) Monday
  16. 16.Today is Thursday. What day of the week will it be after 32 days? (a) Wednesday (b) Tuesday (c) Monday (d) Sunday
  17. 17.If 10 March is a Saturday, what day of the week is 8 April? (a) Tuesday (b) Sunday (c) Monday (d) Saturday
  18. 18.Today is Thursday. What day of the week will it be after 95 days? (a) Tuesday (b) Sunday (c) Wednesday (d) Monday
  19. 19.If 8 August is a Wednesday, what day of the week is 17 August? (a) Saturday (b) Friday (c) Sunday (d) Thursday
  20. 20.If 31 March is a Friday, what day of the week is 12 April? (a) Tuesday (b) Friday (c) Thursday (d) Wednesday
  21. 21.Today is Sunday. What day of the week will it be after 28 days? (a) Tuesday (b) Sunday (c) Monday (d) Saturday
  22. 22.If 12 May is a Tuesday, what day of the week is 17 June? (a) Thursday (b) Wednesday (c) Tuesday (d) Friday
  23. 23.Today is Tuesday. What day of the week will it be after 56 days? (a) Tuesday (b) Monday (c) Thursday (d) Wednesday
  24. 24.If 14 July is a Tuesday, what day of the week is 5 August? (a) Thursday (b) Tuesday (c) Friday (d) Wednesday
  25. 25.If 14 January is a Monday, what day of the week is 5 February? (a) Monday (b) Wednesday (c) Thursday (d) Tuesday
  26. 26.If 5 December is a Saturday, what day of the week is 17 December? (a) Thursday (b) Wednesday (c) Saturday (d) Friday
  27. 27.Today is Friday. What day of the week will it be after 22 days? (a) Monday (b) Friday (c) Sunday (d) Saturday
  28. 28.Today is Friday. What day of the week will it be after 21 days? (a) Thursday (b) Sunday (c) Friday (d) Saturday
  29. 29.If 14 January is a Saturday, what day of the week is 4 February? (a) Friday (b) Sunday (c) Monday (d) Saturday
  30. 30.If 5 October is a Sunday, what day of the week is 13 October? (a) Sunday (b) Tuesday (c) Monday (d) Wednesday
  31. 31.If 5 July is a Monday, what day of the week is 17 July? (a) Saturday (b) Friday (c) Sunday (d) Monday
  32. 32.If 13 July is a Tuesday, what day of the week is 28 July? (a) Wednesday (b) Thursday (c) Friday (d) Tuesday
  33. 33.Today is Tuesday. What day of the week will it be after 21 days? (a) Monday (b) Tuesday (c) Thursday (d) Wednesday
  34. 34.If 11 May is a Friday, what day of the week is 10 June? (a) Monday (b) Saturday (c) Sunday (d) Tuesday
  35. 35.Today is Wednesday. What day of the week will it be after 80 days? (a) Sunday (b) Friday (c) Saturday (d) Monday
  36. 36.If 7 May is a Saturday, what day of the week is 19 May? (a) Friday (b) Saturday (c) Thursday (d) Wednesday
  37. 37.If 10 April is a Wednesday, what day of the week is 8 May? (a) Friday (b) Wednesday (c) Tuesday (d) Thursday
  38. 38.Today is Tuesday. What day of the week will it be after 100 days? (a) Friday (b) Wednesday (c) Thursday (d) Saturday
  39. 39.If 24 June is a Monday, what day of the week is 19 July? (a) Thursday (b) Saturday (c) Sunday (d) Friday
  40. 40.If 9 July is a Sunday, what day of the week is 17 July? (a) Wednesday (b) Tuesday (c) Monday (d) Sunday

Answer key

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

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