High School

When the start time is prior to [tex]$1:00$[/tex] and the end time is [tex]$1:00$[/tex] or later, add [tex]$12:00$[/tex] to the end time.

Calculate: [tex]$(1:45 + 12:00) - 8:15$[/tex]

Convert to 24-hour time: [tex]$13:45 - 8:15 = 5 \text{ hours and } 30 \text{ minutes}$[/tex]

What is the time between [tex]$2:15 \, \text{P.M.}$[/tex] and [tex]$4:59 \, \text{P.M.}$[/tex]?

Answer :

Let's calculate the time difference between 2:15 PM and 4:59 PM.

1. Convert the start time to minutes:
- 2:15 PM is equivalent to 2 hours and 15 minutes.
- To convert this to minutes, multiply the number of hours by 60 (since there are 60 minutes in an hour) and add the minutes.
- [tex]\(2 \times 60 + 15 = 120 + 15 = 135\)[/tex] minutes.

2. Convert the end time to minutes:
- 4:59 PM is equivalent to 4 hours and 59 minutes.
- Similarly, convert this time to minutes:
- [tex]\(4 \times 60 + 59 = 240 + 59 = 299\)[/tex] minutes.

3. Calculate the difference in minutes:
- Subtract the start time in minutes from the end time in minutes.
- [tex]\(299 - 135 = 164\)[/tex] minutes.

4. Convert the difference back to hours and minutes:
- Divide the total minutes by 60 to find the hours, and find the remainder to get the remaining minutes.
- [tex]\(164 \div 60 = 2\)[/tex] hours, with a remainder of 44 minutes.

Therefore, the time difference between 2:15 PM and 4:59 PM is 2 hours and 44 minutes.

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