What’s 45 min before 12:15
The Correct Answer and Explanation is :
To determine what time it is 45 minutes before 12:15, we can follow these steps:
- Start with the given time: 12:15 PM.
- Subtract 45 minutes: Since 12:15 is 15 minutes past noon, we can break the subtraction into two parts: first, we subtract the 15 minutes to get to 12:00, and then we subtract the remaining 30 minutes.
- Subtracting 15 minutes from 12:15 PM brings us to 12:00 PM.
- From 12:00 PM, we then subtract 30 minutes.
- Calculate 30 minutes before 12:00 PM: This gives us 11:30 AM.
Thus, 45 minutes before 12:15 PM is 11:30 AM.
Explanation:
Time is typically represented in hours and minutes, and calculations involving time can sometimes be tricky due to the way we handle the transition between hours and AM/PM designations. When we want to subtract a duration from a specific time, it’s often helpful to visualize the clock or break the problem down into manageable parts.
In this example, starting at 12:15 PM means we are in the afternoon, and the clock reads a quarter past twelve. By first subtracting 15 minutes, we reach a round hour—12:00 PM. This is a simple, straightforward calculation since 12:15 minus 15 equals 12:00.
The next step involves subtracting an additional 30 minutes. Subtraction in time can be done easily in segments, especially when we reach a full hour. Moving from 12:00 PM back to 11:30 AM involves counting backwards through the hour. Thus, once we account for both segments of the subtraction (15 minutes and 30 minutes), we find that 45 minutes before 12:15 PM lands us at 11:30 AM, efficiently navigating through the time calculation.