You are given a math word problem and you are supposed to apply addition or subtraction mathematical operators on the numbers embedded in the text to answer the following question and then only report the final numerical answer.
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Question: 532 people are watching a movie in a theater . The theater has 750 seats . How many seats are empty in the theater ?

Answer: 218

Question: Tori is a school janitor . Last week , she picked up a total of 1576 pieces of trash . If she picked up 344 pieces of trash in the classrooms , how many pieces of trash did Tori pick up outside the classrooms ?

Answer: 1232

Question: 2 stockbrokers are making cold calls to potential customers regarding a hot IPO . One of the brokers is able to get a new client every 0.125 hour , and the other is able to get a new client every 0.2 hour . At what rate , in clients per hour , are the new clients being acquired when both are working ?

Answer:
13