Calculating the End Time of a School Parents Evening
Organizing a school parents evening can be a meticulous task, ensuring that the arrangements are smooth and all parents can get the attention they need from their child's teacher. One crucial aspect is planning the timing and ensuring that the event ends at the correct time. In this article, we will walk through a detailed example to calculate the exact finish time of a parents evening, using proper time management techniques.
Understanding the Components of the Event
The parents evening was planned to start at 15:45. The evening included 20 consecutive appointments of 10 minutes each, with a 15-minute break during the evening. To get a clear picture of the total duration and the exact end time, we need to calculate the combined time for the appointments and the break.
Total Duration of Appointments
Total appointment time 20 appointments x 10 minutes Total appointment time 200 minutesBreak Time
15 minutes breakTotal Time Including Break
Total time Total appointment time - Break time Total time 200 minutes - 15 minutes Total time 185 minutesConverting Total Time to Hours and Minutes
Next, we need to convert the total time from minutes into hours and minutes.
Convert 185 Minutes into Hours and Minutes
185 minutes ÷ 60 3 hours and 5 minutesAdding Time to the Start Time
The parents evening starts at 15:45. We need to add the total duration (3 hours and 5 minutes) to this start time to determine the end time.
Adding 3 Hours to 15:45
15:45 3 hours 18:45Adding 5 Minutes to 18:45
18:45 5 minutes 18:50Therefore, the parents evening was due to finish at 18:50. However, it is worth noting that there is an earlier calculation leading to a different finish time of 19:20. Let's compare and resolve this discrepancy.
Revised Calculation
A re-evaluation of the time shows that the total time is 215 minutes.
Calculating 215 Minutes in Hours and Minutes
215 minutes ÷ 60 3 hours and 35 minutesAdding 3 Hours and 35 Minutes to 15:45
15:45 3 hours 18:45 18:45 35 minutes 19:20 (24-hour clock)
Thus, based on the revised calculation, the parents evening was due to finish at 19:20 (24-hour clock).
Alternative Calculation
Another way to approach the problem is to convert the total time of the appointments and break into hours and minutes. The total duration of appointments is 200 minutes, which is 3 hours and 20 minutes. Including the 15-minute break, the total time is 475 minutes or 7 hours and 55 minutes. Adding this to the start time of 15:45 gives a finish time of 23:40.
Conclusion
While the initial calculation points to a finish time of 19:20, a corrected calculation leads to a more accurate and correct finish time of 19:20 (24-hour clock). This method ensures that the school can manage the parents evening efficiently, ensuring that all families can attend and receive the necessary information in a timely manner.
The final answer is that the parents evening was due to finish at 19:20.