Shivani played a video game with three levels. It took her 30 minutes to beat the first level and 1 hour and 45 minutes to beat the second level. Shivani played the final level for 30 minutes to finish the game. She beat the final level and stopped playing at 12:15 P. M. What time did Shivani start playing the game?

9:30 am

Step-by-step explanation:

Add 30 minutes + 30 minutes to get 60 minutes, which is one hour. Add 1 hour to 1 hour and 45 minutes to get 2 hours and 45 minutes. Subtract 2 hours from 12:15 pm, to get 10:15. That'll leave you with just 45 minutes left. To make it easier than subtract 45 minutes from 10:15, subtract 15 minutes from 10:15, to end up at 10:00 am. 45 minutes - 15 minutes = 30 minutes, so then you subract 30 minutes from 10:00 am, and you end up at 9:30 am, which is your final answer