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Time and Clock Worksheet for Maths Olympiad

Maths Olympiad topic 5: Time and clocks · Set 98 · 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 20 minutes before 8:40? (a) 8:30 (b) 7:20 (c) 8:20 (d) 9:20
  2. 2.What time will it be 20 minutes after 7:10? (a) 8:30 (b) 7:30 (c) 6:30 (d) 7:20
  3. 3.What time will it be 40 minutes after 2:15? (a) 2:45 (b) 3:55 (c) 1:55 (d) 2:55
  4. 4.What time was it 50 minutes before 2:25? (a) 1:45 (b) 1:35 (c) 2:35 (d) 1:25
  5. 5.What time will it be 55 minutes after 5:10? (a) 5:05 (b) 7:05 (c) 5:55 (d) 6:05
  6. 6.What time was it 50 minutes before 4:10? (a) 4:20 (b) 3:30 (c) 2:20 (d) 3:20
  7. 7.What time will it be 55 minutes after 1:00? (a) 2:05 (b) 1:45 (c) 1:55 (d) 2:55
  8. 8.What time was it 20 minutes before 9:05? (a) 8:45 (b) 8:55 (c) 9:45 (d) 7:45
  9. 9.What time will it be 45 minutes after 4:40? (a) 5:25 (b) 5:15 (c) 6:25 (d) 4:25
  10. 10.What time will it be 25 minutes after 6:10? (a) 5:35 (b) 6:25 (c) 6:35 (d) 7:35
  11. 11.What time will it be 25 minutes after 4:00? (a) 4:25 (b) 4:15 (c) 3:25 (d) 5:25
  12. 12.What time was it 55 minutes before 7:25? (a) 6:40 (b) 7:30 (c) 6:30 (d) 5:30
  13. 13.A film starts at 5:00 and ends at 5:40. How long is the film? (a) 50 min (b) 30 min (c) 40 min (d) 1 h 40 min
  14. 14.What time will it be 35 minutes after 7:45? (a) 9:20 (b) 8:10 (c) 8:20 (d) 7:20
  15. 15.A film starts at 1:15 and ends at 2:20. How long is the film? (a) 1 h 15 min (b) 5 min (c) 2 h 5 min (d) 1 h 5 min
  16. 16.What time was it 20 minutes before 6:05? (a) 6:45 (b) 4:45 (c) 5:45 (d) 5:55
  17. 17.A film starts at 3:05 and ends at 3:55. How long is the film? (a) 40 min (b) 1 h (c) 1 h 50 min (d) 50 min
  18. 18.A film starts at 3:50 and ends at 4:50. How long is the film? (a) 1 h 10 min (b) 1 h (c) 50 min (d) 2 h
  19. 19.What time will it be 40 minutes after 1:20? (a) 3:00 (b) 2:00 (c) 1:50 (d) 1:00
  20. 20.What time will it be 20 minutes after 4:35? (a) 3:55 (b) 4:45 (c) 4:55 (d) 5:55
  21. 21.What time will it be 30 minutes after 4:00? (a) 4:30 (b) 4:20 (c) 3:30 (d) 5:30
  22. 22.What time was it 20 minutes before 2:00? (a) 1:30 (b) 2:40 (c) 1:50 (d) 1:40
  23. 23.What time will it be 45 minutes after 8:05? (a) 8:50 (b) 9:50 (c) 7:50 (d) 8:40
  24. 24.What time will it be 15 minutes after 6:35? (a) 6:50 (b) 7:50 (c) 6:40 (d) 5:50
  25. 25.A film starts at 2:10 and ends at 3:00. How long is the film? (a) 1 h 50 min (b) 1 h (c) 40 min (d) 50 min
  26. 26.What time will it be 30 minutes after 1:10? (a) 1:40 (b) 2:40 (c) 1:30 (d) 1:50
  27. 27.What time was it 50 minutes before 11:35? (a) 10:55 (b) 9:45 (c) 10:45 (d) 11:45
  28. 28.What time was it 15 minutes before 2:40? (a) 1:25 (b) 3:25 (c) 2:35 (d) 2:25
  29. 29.A film starts at 1:05 and ends at 1:30. How long is the film? (a) 25 min (b) 15 min (c) 35 min (d) 1 h 25 min
  30. 30.A film starts at 2:30 and ends at 3:05. How long is the film? (a) 25 min (b) 45 min (c) 1 h 35 min (d) 35 min
  31. 31.What time will it be 15 minutes after 5:35? (a) 5:40 (b) 4:50 (c) 5:50 (d) 6:50
  32. 32.What time will it be 55 minutes after 6:00? (a) 6:55 (b) 6:45 (c) 7:55 (d) 5:55
  33. 33.What time will it be 55 minutes after 8:45? (a) 9:40 (b) 9:30 (c) 8:40 (d) 10:40
  34. 34.A film starts at 4:40 and ends at 5:40. How long is the film? (a) 1 h (b) 1 h 10 min (c) 50 min (d) 2 h
  35. 35.What time will it be 25 minutes after 4:55? (a) 4:20 (b) 5:10 (c) 5:20 (d) 6:20
  36. 36.What time was it 25 minutes before 7:25? (a) 8:00 (b) 6:00 (c) 7:00 (d) 7:10
  37. 37.What time will it be 50 minutes after 5:40? (a) 6:20 (b) 6:30 (c) 7:30 (d) 5:30
  38. 38.What time was it 20 minutes before 9:40? (a) 9:20 (b) 8:20 (c) 9:30 (d) 10:20
  39. 39.What time will it be 40 minutes after 1:30? (a) 2:00 (b) 3:10 (c) 1:10 (d) 2:10
  40. 40.A film starts at 1:35 and ends at 3:40. How long is the film? (a) 2 h 5 min (b) 1 h 5 min (c) 2 h 15 min (d) 3 h 5 min

Answer key

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

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