Sarah has a list of chores that she needs to complete throughout the day. She spends 45 minutes vacuuming the house, 30 minutes washing dishes, a certain amount of time organizing the garage, and 25 minutes watering the plants. If she spends a total of three hours on these tasks, how long, in minutes, did she spend organizing the garage? Let's think step by step and output the final answer within \boxed{}.
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