Final answer:
Amelia took 1 hour and 37 minutes to solve the puzzle, calculated by subtracting the start time from the end time and considering hours and minutes separately.
Step-by-step explanation:
To calculate how long Amelia took to solve the puzzle, you subtract the start time from the end time. Amelia started the puzzle at 12:56 p.m. and finished it at 2:33 p.m. To find the time spent, we look at the hours and the minutes separately:
From 12:56 p.m. to 1:56 p.m. is 1 hour.
From 1:56 p.m. to 2:33 p.m. is another 37 minutes.
Adding the hour and the minutes together, Amelia spent 1 hour and 37 minutes solving the puzzle.