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Time and Clock Worksheet for Maths Olympiad

Maths Olympiad topic 5: Time and clocks · Set 95 · 40 questions
TalentJR

How to solve it (Jump to the hour): Minutes after: jump to the next full hour, then add the minutes that are left. Minutes before: jump back to the full hour, then go back the rest. How long: change both times to minutes, take away, then change back to hours and minutes (60 minutes = 1 hour).

NameDateTime takenScore ___ / 40
  1. 1.What time was it 45 minutes before 9:35? (a) 8:50 (b) 7:50 (c) 9:50 (d) 9:00
  2. 2.What time was it 35 minutes before 8:35? (a) 8:10 (b) 8:00 (c) 7:00 (d) 9:00
  3. 3.What time was it 15 minutes before 10:20? (a) 9:05 (b) 11:05 (c) 10:05 (d) 10:15
  4. 4.A film starts at 7:35 and ends at 9:30. How long is the film? (a) 55 min (b) 1 h 55 min (c) 2 h 55 min (d) 2 h 5 min
  5. 5.What time will it be 30 minutes after 6:45? (a) 8:15 (b) 7:05 (c) 7:15 (d) 6:15
  6. 6.What time will it be 50 minutes after 9:20? (a) 10:00 (b) 10:10 (c) 9:10 (d) 11:10
  7. 7.What time will it be 15 minutes after 8:10? (a) 9:25 (b) 7:25 (c) 8:25 (d) 8:15
  8. 8.What time will it be 30 minutes after 1:00? (a) 2:30 (b) 1:40 (c) 1:30 (d) 1:20
  9. 9.What time will it be 20 minutes after 1:45? (a) 1:55 (b) 2:05 (c) 1:05 (d) 3:05
  10. 10.What time was it 35 minutes before 10:30? (a) 9:55 (b) 10:05 (c) 8:55 (d) 10:55
  11. 11.A film starts at 8:30 and ends at 8:50. How long is the film? (a) 20 min (b) 1 h 20 min (c) 10 min (d) 30 min
  12. 12.What time was it 50 minutes before 9:10? (a) 7:20 (b) 9:20 (c) 8:20 (d) 8:30
  13. 13.A film starts at 7:15 and ends at 8:55. How long is the film? (a) 2 h 40 min (b) 1 h 40 min (c) 1 h 50 min (d) 40 min
  14. 14.What time will it be 45 minutes after 2:50? (a) 3:25 (b) 2:35 (c) 4:35 (d) 3:35
  15. 15.What time was it 35 minutes before 5:35? (a) 5:10 (b) 5:00 (c) 4:00 (d) 6:00
  16. 16.What time will it be 30 minutes after 10:05? (a) 10:35 (b) 9:35 (c) 10:25 (d) 11:35
  17. 17.A film starts at 6:05 and ends at 8:55. How long is the film? (a) 3 h 50 min (b) 1 h 50 min (c) 2 h 50 min (d) 3 h
  18. 18.A film starts at 1:00 and ends at 2:30. How long is the film? (a) 1 h 30 min (b) 2 h 30 min (c) 30 min (d) 1 h 40 min
  19. 19.What time will it be 55 minutes after 9:15? (a) 10:00 (b) 9:10 (c) 11:10 (d) 10:10
  20. 20.What time was it 40 minutes before 2:35? (a) 2:55 (b) 2:05 (c) 1:45 (d) 1:55
  21. 21.What time was it 55 minutes before 7:55? (a) 7:10 (b) 7:00 (c) 6:00 (d) 8:00
  22. 22.What time will it be 15 minutes after 5:45? (a) 5:50 (b) 7:00 (c) 6:00 (d) 5:00
  23. 23.What time will it be 25 minutes after 7:55? (a) 8:20 (b) 9:20 (c) 8:10 (d) 7:20
  24. 24.A film starts at 1:30 and ends at 3:55. How long is the film? (a) 2 h 35 min (b) 2 h 25 min (c) 3 h 25 min (d) 1 h 25 min
  25. 25.What time will it be 20 minutes after 1:20? (a) 1:30 (b) 1:50 (c) 2:40 (d) 1:40
  26. 26.What time will it be 40 minutes after 5:50? (a) 7:30 (b) 6:20 (c) 6:30 (d) 5:30
  27. 27.What time was it 30 minutes before 6:25? (a) 4:55 (b) 5:55 (c) 6:05 (d) 6:55
  28. 28.What time was it 40 minutes before 6:00? (a) 5:20 (b) 5:30 (c) 4:20 (d) 6:20
  29. 29.What time was it 35 minutes before 10:05? (a) 9:30 (b) 10:30 (c) 8:30 (d) 9:40
  30. 30.What time was it 25 minutes before 4:30? (a) 5:05 (b) 3:05 (c) 4:05 (d) 4:15
  31. 31.A film starts at 7:25 and ends at 8:10. How long is the film? (a) 45 min (b) 35 min (c) 55 min (d) 1 h 45 min
  32. 32.A film starts at 8:50 and ends at 9:20. How long is the film? (a) 30 min (b) 1 h 30 min (c) 40 min (d) 20 min
  33. 33.What time will it be 20 minutes after 4:15? (a) 4:25 (b) 5:35 (c) 4:35 (d) 3:35
  34. 34.What time will it be 40 minutes after 10:05? (a) 10:35 (b) 10:45 (c) 11:45 (d) 9:45
  35. 35.What time will it be 55 minutes after 5:20? (a) 6:05 (b) 7:15 (c) 5:15 (d) 6:15
  36. 36.What time was it 40 minutes before 3:15? (a) 1:35 (b) 2:35 (c) 3:35 (d) 2:45
  37. 37.What time will it be 30 minutes after 1:30? (a) 1:00 (b) 3:00 (c) 1:50 (d) 2:00
  38. 38.What time will it be 20 minutes after 3:15? (a) 3:25 (b) 4:35 (c) 2:35 (d) 3:35
  39. 39.A film starts at 1:25 and ends at 3:10. How long is the film? (a) 2 h 45 min (b) 1 h 55 min (c) 45 min (d) 1 h 45 min
  40. 40.What time will it be 15 minutes after 10:05? (a) 9:20 (b) 10:20 (c) 11:20 (d) 10:10

Answer key

  1. 8:50
  2. 8:00
  3. 10:05
  4. 1 h 55 min
  5. 7:15
  6. 10:10
  7. 8:25
  8. 1:30
  9. 2:05
  10. 9:55
  11. 20 min
  12. 8:20
  13. 1 h 40 min
  14. 3:35
  15. 5:00
  16. 10:35
  17. 2 h 50 min
  18. 1 h 30 min
  19. 10:10
  20. 1:55
  21. 7:00
  22. 6:00
  23. 8:20
  24. 2 h 25 min
  25. 1:40
  26. 6:30
  27. 5:55
  28. 5:20
  29. 9:30
  30. 4:05
  31. 45 min
  32. 30 min
  33. 4:35
  34. 10:45
  35. 6:15
  36. 2:35
  37. 2:00
  38. 3:35
  39. 1 h 45 min
  40. 10:20

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