Final answer:
To determine the start time, multiply the time taken by each team with the number of teams, convert the total time to hours, and add it to the scheduled start time of 12:30 PM.
Step-by-step explanation:
The correct answer is option Mathematics.
To determine the start time, we need to calculate the total time needed for all the teams. Each team takes 15 minutes to complete their activity and there are 12 teams scheduled. So, the total time needed would be 15 minutes x 12 teams = 180 minutes.
Next, we need to convert the total time from minutes to hours for easier calculation. Since 60 minutes equals 1 hour, we divide 180 minutes by 60 minutes to get 3 hours. Therefore, the event will take 3 hours in total.
Finally, we add the 3 hours to the scheduled start time of 12:30 to get the actual start time. Adding 3 hours to 12:30 gives us 3:30 PM. So, Steve should begin the event at 3:30 PM.