Answer:
11:48:51 p.m.
Explanation:
11:09 minutes means 11 minutes and 9 seconds.
You need to subtract 11 minutes and 9 seconds from midnight. Midnight means 12 hours, 0 minutes, and 0 seconds.
12:00:00 - 00:11:09 =
Start with midnight written as 12 hours, 0 minutes, 0 seconds, or 12:00:00.
Now, you borrow 1 hour (as 60 minutes) from 12 making it 11:60:00.
Then you borrow 1 minute (as 60 seconds) from the 60 minutes making it 11:59:60. 11 hours, 59 minutes, and 60 seconds is the same as midnight. Now you can do the subtraction.
= 11:59:60 - 00:11:09
Subtract 0 hours from 11 hours giving you 11 hours.
Subtract 11 minutes from 59 minutes giving you 48 minutes.
Subtract 9 seconds from 60 seconds giving you 51 seconds.
= 11:48:51
You must start at 11:48:51 p.m.