A factory produces two types of widgets: Type A and Type B. Type A widgets are produced at a rate of 60 widgets per hour, while Type B widgets are produced at a rate of 45 widgets per hour. If the factory increases the production rate of Type A widgets by 15 widgets per hour and decreases the production rate of Type B widgets by 10 widgets per hour, how many more widgets per hour are produced in total? Let's think step by step and output the final answer within \boxed{}.
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