# Solve a variety of problems involving duration, including where times are expressed in 12-hour and 24-hour notation, that require the use of mixed units (years, months, days, hours and/or minutes)

1. | Here a fraction there a fraction: Calculate a fraction of a quantity, then a fraction of the fraction. | |

2. | Chicken Rules, OK? - Derive and solve an algebraic expression | |

3. | Chicken Rules, OK? - Derive and solve an algebraic expression | |

4. | It's A Bug's Life - 17 years after 2004 | |

5. | The wheels on the bus... 2 - read timetable and calculate duration | |

6. | The Bear Facts 2 - calculate duration of hibernation in days | |

7. | Commuter Tutor - calculate arrival times | |

8. | Rush Hour - complete timetable given trip and wait times | |

9. | A Breath of Fresh Air - number of 15 minute intervals in one day | |

10. | Travel Time 5 - calculate time between 08:45 and 14:35 | |

11. | Early To Bed, Early To Rise - calculate duration of night | |

12. | Race Against Time 1 - calculate duration in hours and minutes | |

13. | Fishy Business 3 - calculate time of concurrent events | |

14. | Lunar Ticks 1 - lunar months and years | |

15. | Goal Posts Bus Service Timetable 2 - calculate total time spent over 12 months | |

16. | Goal Posts Bus Service Timetable 1 - calculate total time spent over 12 months | |

17. | Race Against Time 2 - calculate duration in hours and minutes | |

18. | The Bear Facts 3 - quadrennium, years, days | |

19. | Baby Boom - 336 days after Jan 1st | |

20. | Rev It Up - calculate time in hours and minutes from RPM | |

21. | Lunar Ticks 6 - astronomical time units, saros | |

22. | In The Blink Of An Eye 2 - metric time; metric hours, beats and blinks | |

23. | Pumping Maths - time to fill fuel tank given rate | |

24. | The Sanders Family Pool! - time taken to fill pool from 40000L to 43000L | |

25. | The Sanders Family Pool! - time taken to fill 43000L pool at 20.5L/min | |

26. | The Sanders Family Pool! - time taken to fill pool from 40000L to 43000L | |

27. | A Bright Spark - standard deviation |