If it's 11:55 and you want to find the time in +30mins. 30mins/6=5mins, so you can add 5 mins to 11:55, 6 times. After 1 time, 12:00, after 2, 12:05, after 3, 12:10, after 4, 12:15, after 5, 12:20, after 6,12:25. So in 30mins it will be 12:25.
You don't have to use 6, 5 minutes, but still works
My answer to this is
You know there is 60 minutes in a hour, so for this question the answer will be 12:??
Then, after we find how much minutes left when it is 12:00, there is 25 more mintues. We add on 25, so 12:25