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Time and Clock Worksheet for Maths Olympiad

Maths Olympiad topic 5: Time and clocks · Set 825 · 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 will it be 15 minutes after 2:05? (a) 2:20 (b) 3:20 (c) 1:20 (d) 2:10
  2. 2.A film starts at 1:05 and ends at 1:30. How long is the film? (a) 15 min (b) 35 min (c) 25 min (d) 1 h 25 min
  3. 3.A film starts at 1:45 and ends at 3:30. How long is the film? (a) 1 h 45 min (b) 1 h 55 min (c) 2 h 45 min (d) 45 min
  4. 4.What time was it 20 minutes before 9:20? (a) 10:00 (b) 9:00 (c) 9:10 (d) 8:00
  5. 5.What time was it 25 minutes before 6:05? (a) 5:40 (b) 6:40 (c) 4:40 (d) 5:50
  6. 6.What time will it be 15 minutes after 7:25? (a) 7:30 (b) 7:40 (c) 6:40 (d) 8:40
  7. 7.A film starts at 8:00 and ends at 8:25. How long is the film? (a) 15 min (b) 1 h 25 min (c) 25 min (d) 35 min
  8. 8.What time was it 20 minutes before 4:55? (a) 4:45 (b) 4:35 (c) 5:35 (d) 3:35
  9. 9.What time was it 45 minutes before 8:00? (a) 7:25 (b) 6:15 (c) 7:15 (d) 8:15
  10. 10.A film starts at 5:25 and ends at 6:10. How long is the film? (a) 35 min (b) 45 min (c) 1 h 45 min (d) 55 min
  11. 11.A film starts at 2:50 and ends at 5:50. How long is the film? (a) 3 h (b) 4 h (c) 3 h 10 min (d) 2 h
  12. 12.What time was it 40 minutes before 8:20? (a) 6:40 (b) 7:40 (c) 8:40 (d) 7:50
  13. 13.What time will it be 30 minutes after 9:10? (a) 9:40 (b) 9:30 (c) 10:40 (d) 8:40
  14. 14.A film starts at 1:50 and ends at 2:25. How long is the film? (a) 45 min (b) 25 min (c) 1 h 35 min (d) 35 min
  15. 15.What time was it 20 minutes before 8:00? (a) 8:40 (b) 6:40 (c) 7:40 (d) 7:50
  16. 16.What time was it 20 minutes before 3:05? (a) 1:45 (b) 3:45 (c) 2:45 (d) 2:55
  17. 17.What time will it be 45 minutes after 2:20? (a) 4:05 (b) 2:55 (c) 3:05 (d) 2:05
  18. 18.What time will it be 20 minutes after 5:35? (a) 5:55 (b) 6:55 (c) 4:55 (d) 5:45
  19. 19.A film starts at 7:35 and ends at 8:35. How long is the film? (a) 50 min (b) 1 h 10 min (c) 1 h (d) 2 h
  20. 20.What time will it be 30 minutes after 9:00? (a) 10:30 (b) 9:20 (c) 9:30 (d) 8:30
  21. 21.A film starts at 6:45 and ends at 7:15. How long is the film? (a) 1 h 30 min (b) 20 min (c) 40 min (d) 30 min
  22. 22.What time will it be 35 minutes after 9:30? (a) 10:05 (b) 9:05 (c) 9:55 (d) 11:05
  23. 23.What time was it 35 minutes before 8:40? (a) 9:05 (b) 7:05 (c) 8:05 (d) 8:15
  24. 24.What time will it be 20 minutes after 9:00? (a) 9:20 (b) 8:20 (c) 10:20 (d) 9:10
  25. 25.A film starts at 2:10 and ends at 3:40. How long is the film? (a) 30 min (b) 1 h 40 min (c) 1 h 30 min (d) 2 h 30 min
  26. 26.A film starts at 6:10 and ends at 7:25. How long is the film? (a) 15 min (b) 2 h 15 min (c) 1 h 25 min (d) 1 h 15 min
  27. 27.A film starts at 6:45 and ends at 7:20. How long is the film? (a) 25 min (b) 1 h 35 min (c) 45 min (d) 35 min
  28. 28.What time was it 20 minutes before 3:00? (a) 2:50 (b) 3:40 (c) 1:40 (d) 2:40
  29. 29.What time will it be 25 minutes after 2:40? (a) 4:05 (b) 3:05 (c) 2:55 (d) 2:05
  30. 30.What time will it be 55 minutes after 9:30? (a) 9:25 (b) 10:15 (c) 10:25 (d) 11:25
  31. 31.A film starts at 6:15 and ends at 6:45. How long is the film? (a) 1 h 30 min (b) 20 min (c) 40 min (d) 30 min
  32. 32.What time will it be 15 minutes after 10:35? (a) 10:40 (b) 11:50 (c) 9:50 (d) 10:50
  33. 33.What time will it be 50 minutes after 7:45? (a) 9:35 (b) 7:35 (c) 8:35 (d) 8:25
  34. 34.What time will it be 30 minutes after 7:20? (a) 7:50 (b) 6:50 (c) 7:40 (d) 8:50
  35. 35.What time was it 20 minutes before 8:40? (a) 8:30 (b) 8:20 (c) 9:20 (d) 7:20
  36. 36.A film starts at 6:25 and ends at 7:00. How long is the film? (a) 35 min (b) 25 min (c) 45 min (d) 1 h 35 min
  37. 37.A film starts at 6:50 and ends at 9:35. How long is the film? (a) 2 h 45 min (b) 2 h 55 min (c) 3 h 45 min (d) 1 h 45 min
  38. 38.What time will it be 40 minutes after 4:15? (a) 5:55 (b) 4:45 (c) 4:55 (d) 3:55
  39. 39.A film starts at 3:00 and ends at 5:05. How long is the film? (a) 1 h 5 min (b) 3 h 5 min (c) 2 h 5 min (d) 2 h 15 min
  40. 40.A film starts at 4:30 and ends at 4:50. How long is the film? (a) 20 min (b) 10 min (c) 1 h 20 min (d) 30 min

Answer key

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

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