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Time and Clock Worksheet for Maths Olympiad

Maths Olympiad topic 5: Time and clocks · Set 168 · 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.A film starts at 2:35 and ends at 4:00. How long is the film? (a) 2 h 25 min (b) 25 min (c) 1 h 25 min (d) 1 h 35 min
  2. 2.A film starts at 6:35 and ends at 7:05. How long is the film? (a) 20 min (b) 1 h 30 min (c) 40 min (d) 30 min
  3. 3.What time will it be 15 minutes after 3:25? (a) 3:30 (b) 4:40 (c) 3:40 (d) 2:40
  4. 4.What time will it be 35 minutes after 1:05? (a) 2:40 (b) 1:30 (c) 1:50 (d) 1:40
  5. 5.What time was it 25 minutes before 11:35? (a) 11:10 (b) 11:20 (c) 10:10 (d) 12:10
  6. 6.What time was it 40 minutes before 10:25? (a) 9:55 (b) 10:45 (c) 8:45 (d) 9:45
  7. 7.What time will it be 30 minutes after 2:55? (a) 3:15 (b) 3:25 (c) 2:25 (d) 4:25
  8. 8.What time was it 30 minutes before 9:45? (a) 10:15 (b) 9:25 (c) 8:15 (d) 9:15
  9. 9.What time will it be 25 minutes after 1:25? (a) 2:50 (b) 1:50 (c) 1:40 (d) 2:00
  10. 10.What time will it be 45 minutes after 2:25? (a) 4:10 (b) 3:10 (c) 3:00 (d) 2:10
  11. 11.What time will it be 50 minutes after 4:40? (a) 5:20 (b) 4:30 (c) 6:30 (d) 5:30
  12. 12.What time was it 55 minutes before 3:10? (a) 2:15 (b) 3:15 (c) 2:25 (d) 1:15
  13. 13.What time was it 35 minutes before 9:00? (a) 8:25 (b) 9:25 (c) 7:25 (d) 8:35
  14. 14.What time was it 20 minutes before 6:15? (a) 4:55 (b) 6:05 (c) 6:55 (d) 5:55
  15. 15.What time was it 45 minutes before 9:40? (a) 9:55 (b) 7:55 (c) 9:05 (d) 8:55
  16. 16.A film starts at 7:55 and ends at 8:20. How long is the film? (a) 35 min (b) 1 h 25 min (c) 25 min (d) 15 min
  17. 17.What time will it be 45 minutes after 5:00? (a) 5:35 (b) 6:45 (c) 4:45 (d) 5:45
  18. 18.What time was it 40 minutes before 5:20? (a) 4:50 (b) 4:40 (c) 5:40 (d) 3:40
  19. 19.What time was it 35 minutes before 11:00? (a) 11:25 (b) 9:25 (c) 10:25 (d) 10:35
  20. 20.What time was it 30 minutes before 4:05? (a) 3:45 (b) 2:35 (c) 3:35 (d) 4:35
  21. 21.What time was it 20 minutes before 6:30? (a) 5:10 (b) 7:10 (c) 6:10 (d) 6:20
  22. 22.What time will it be 15 minutes after 4:55? (a) 4:10 (b) 6:10 (c) 5:00 (d) 5:10
  23. 23.What time will it be 20 minutes after 4:55? (a) 4:15 (b) 6:15 (c) 5:15 (d) 5:05
  24. 24.What time will it be 25 minutes after 6:10? (a) 6:25 (b) 6:35 (c) 7:35 (d) 5:35
  25. 25.What time will it be 25 minutes after 6:45? (a) 8:10 (b) 7:10 (c) 6:10 (d) 7:00
  26. 26.What time was it 25 minutes before 6:00? (a) 5:45 (b) 6:35 (c) 4:35 (d) 5:35
  27. 27.A film starts at 1:05 and ends at 3:05. How long is the film? (a) 2 h (b) 3 h (c) 1 h (d) 2 h 10 min
  28. 28.A film starts at 2:30 and ends at 3:25. How long is the film? (a) 55 min (b) 1 h 55 min (c) 45 min (d) 1 h 5 min
  29. 29.A film starts at 4:20 and ends at 5:45. How long is the film? (a) 1 h 25 min (b) 25 min (c) 2 h 25 min (d) 1 h 35 min
  30. 30.What time will it be 35 minutes after 3:40? (a) 4:05 (b) 4:15 (c) 3:15 (d) 5:15
  31. 31.What time was it 55 minutes before 11:00? (a) 10:05 (b) 9:05 (c) 10:15 (d) 11:05
  32. 32.What time was it 15 minutes before 2:40? (a) 2:25 (b) 1:25 (c) 3:25 (d) 2:35
  33. 33.What time will it be 45 minutes after 2:10? (a) 1:55 (b) 3:55 (c) 2:55 (d) 2:45
  34. 34.What time will it be 20 minutes after 5:25? (a) 4:45 (b) 6:45 (c) 5:35 (d) 5:45
  35. 35.What time will it be 30 minutes after 8:20? (a) 9:50 (b) 8:50 (c) 7:50 (d) 8:40
  36. 36.What time was it 45 minutes before 10:45? (a) 11:00 (b) 10:10 (c) 10:00 (d) 9:00
  37. 37.What time will it be 50 minutes after 6:00? (a) 7:50 (b) 5:50 (c) 6:50 (d) 6:40
  38. 38.What time was it 35 minutes before 11:10? (a) 10:45 (b) 10:35 (c) 11:35 (d) 9:35
  39. 39.A film starts at 3:10 and ends at 5:15. How long is the film? (a) 1 h 5 min (b) 2 h 15 min (c) 2 h 5 min (d) 3 h 5 min
  40. 40.A film starts at 2:25 and ends at 2:55. How long is the film? (a) 20 min (b) 30 min (c) 40 min (d) 1 h 30 min

Answer key

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

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