°° Let's see -
If Nico put the cupcakes in the oven at 8:55, and he had to wait 25 minutes for them to be finished baking, then the correct time for him to take the cupcakes out of the oven would be 9:20.
Why? Let's think about it -
8:55 + 0:25 = 9:20
You basically regroup and add.
↑ ↑ ↑ Hope this helps! :D