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Time and Clock Worksheet for Maths Olympiad

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

Answer key

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

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