John has an appointment at 1200 that will last 1 hour. After this appointment ends, how much time will he have until his next appointment
at 1400?
OA. 2 hours
O B. 1 hour
O C. 4 hours
D. 3 hours



Answer :

To determine the amount of time John has until his next appointment, follow these steps:

1. Identify the end time of the first appointment:
- John's first appointment starts at 1200 and lasts for 1 hour.
- Military time is used here, so adding 1 hour to 1200 gives us 1300.
- Therefore, the first appointment ends at 1300.

2. Determine the start time of the next appointment:
- The next appointment starts at 1400.

3. Calculate the time gap between the end of the first appointment and the start of the next appointment:
- Subtract the end time of the first appointment (1300) from the start time of the next appointment (1400):
[tex]\[ 1400 - 1300 = 100 \][/tex]

4. Convert the time gap into hours:
- In military time, 100 represents 1 hour.

Therefore, the time John has between the end of his first appointment and the start of his next appointment is 1 hour.

The correct answer is:
O B. 1 hour

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