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Mathematics, 17.08.2021 18:30 bibhu42kumarp7o4ss

Professor Malone is grading papers in the teachers' lounge. She has already finished grading 10 assignments, and is grading 9 more assignments per hour. Her teaching assistant just came in to help her. He can grade at a rate of 10 assignments every hour. At some point, they will be finished and will have graded the same number of papers. How many assignments will they each have graded?

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