Answer:
Therefore, they must start their preparations at 6:05 AM in order to be ready by 12:30 PM.
Step-by-step explanation:
To calculate the time they must start with their preparations, we need to work backmust subtract this time from the deadline of 12:30 to find out when they need to start.
6 hours 15 minutes is equivalent to 6.25 hours (15 minutes = 0.25 hours).
So, 12:30 - 6.25 hours = 6:05 AM
Therefore, they must start their preparations at 6:05 AM in order to be ready by 12:30 PM.
