What time was it 50 minutes before 09:10?
Give your answer using the 24 hour clock.
The Correct Answer and Explanation is:
To determine what time it was 50 minutes before 09:10, we need to perform a simple subtraction of time. The time given is 09:10, which is in the 24-hour format. Here’s a breakdown of the steps involved in finding the time:
- Understanding Time Representation: In the 24-hour clock system, the hours run from 00:00 (midnight) to 23:59 (one minute before midnight the following day). In this system, 09:10 indicates 9 hours and 10 minutes in the morning.
- Subtraction of Minutes: To find out what time it was 50 minutes before 09:10, we first subtract 50 minutes from the minutes portion of the given time:
- We have 10 minutes at 09:10.
- If we subtract 50 minutes from 10 minutes, we need to consider that we cannot have a negative minute value. Therefore, we need to borrow from the hour.
- Borrowing from the Hour: Since we are subtracting more minutes than we currently have, we need to adjust the hour:
- Subtract 1 hour from 09:00 (which turns it into 08:00), and add 60 minutes to the 10 minutes. This gives us:
- 10 minutes + 60 minutes = 70 minutes.
- Calculating the Result: Now we can subtract the 50 minutes:
- 70 minutes – 50 minutes = 20 minutes.
- Final Time Calculation: After subtracting, we are left with 20 minutes after adjusting the hour:
- Thus, we have 08:20.
Therefore, 50 minutes before 09:10 is 08:20 in 24-hour clock notation.
Summary:
- Start time: 09:10
- Minutes to subtract: 50
- After borrowing, we adjust to 08:00 + 70 minutes.
- Subtracting results in 08:20.
The final answer is 08:20.